Testing for Neutrality and Rationality (2009)
The natural unemployment rate hypothesis made its first appearance as the provocative but somewhat vague statement that “in the long run ” a higher rate of inflation would not result in a lower...
Marco Cagetti, Lars Peter Hansen, Thomas J. Sargent, Noah Williams, Minnesota P
• Risks with known probabilities • Risks with unknown probabilities Minnesota – p. 2/19 Risk and uncertainty • Risks with known probabilities • Risks with unknown probabilities • Control...
FEDERAL RESERVE BANK OF ATLANTA (2008)
Thomas J. Sargent, Mark W. Watson
ABSTRACT. The dynamics of a linear (or linearized) dynamic stochastic economic model can be expressed in terms of matrices (A,B,C,D) that define a state space system for a vector of observables. An...
Macroeconomic Policy, Evolution, and Self-Confirming Equilibrium (2008)
This paper uses policy disputes about centuries of experience with commodity money systems and US monetary policy in the 1970s and 1980s to illustrate macroeconomists' enduring struggles with Hume's...
WANTING ROBUSTNESS IN MACROECONOMICS (2007)
mathematical foundations that applied economists have used to construct quantitative dynamic models for policy making and empirical analyses. The mathematical
ACKNOWLEDGING MISSPECIFICATION IN MACROECONOMIC THEORY (2007)
Abstract. We explore methods for confronting model misspecication in macroeconomics. We construct dynamic equilibria in which private agents and policy makers recognize that models are...
Learning to be Credible (2007)
This paper was prepared for presentation at the conference to celebrate the Bank of
Neural Networks for Encoding and Adapting in Dynamic Economies (2007)
this paper draw heavily on materials in chapters 3 and 4 of Sargent's Bounded Rationality in Macroeconomics, Oxford University Press, 1993. 2 Neural Networks for Encoding and Adapting in Dynamic...
Alternative Monetary Policies in a Turnpike Economy* (2007)
By Rodolfo Manuelli, Thomas J. Sargent
: A version of a Townsend turnpike model is described in which agents stay at a location long enough to trade some consumption loans, but not long enough to support an Arrow-Debreu allocation....
An Appreciation of A. W. Phillips (2007)
Lars P. Hansen, Thomas J. Sargent
A way to honor A. W. Phillips is to describe the continuing influence of one of his enduring contributions to economic dynamics, his remarkable 1959 Biometrika paper about how discrete time...
Notes on Linear Control Theory (2007)
Lars Peter Hansen, Thomas J. Sargent
this paper use routines from the FORTRAN packages LAPACK, LINPACK and RICPACK. All of these packages can be obtained by anonymous ftp from netlib.att.com and various mirrors. MATLAB is a commercial...
Alternative Monetary Policies in a Turnpike Economy (2007)
Rodolfo Manuelli, Thomas J. Sargent
: A version of a Townsend turnpike model is described in which agents stay at a location long enough to trade some consumption loans, but not long enough to support an Arrow-Debreu allocation....
I. Rational Expectations versus Misspecification (2007)
Lars Peter Hansen, Thomas J. Sargent
We explore methods for confronting model misspecification in macroeconomics. We construct dynamic equilibria in which private agents and policy makers recognize that models are approximations. We...
The Term Structure of Real Interest Rates: Theory and Evidence from (2007)
Alex Monge, Marcelo Navarro, Antti Ripatti, Thomas J. Sargent, Pietro Veronesi
This paper studies the behavior of the default-risk free real term structure and term premia in two general equilibrium endowment economies with complete markets but without money. In the first...
2 Optimal Taxation without State-Contingent Debt (2007)
Albert Marcet, Thomas J. Sargent, Kenneth Judd, Martin Schneider, Nancy Stokey
To recover a version of Barro's (1979) `random walk ' tax smoothing outcome, we modify Lucas and Stokey's (1983) economy to permit only risk-free debt. This imparts near unit root like...
The European Employment Experience (2007)
Lars Ljungqvist And, Lars Ljungqvist, Thomas J. Sargent
Similar durations but lower flows into unemployment gave Europe lower unemployment rates than the United States until the 1970's. But since 1980, higher durations have kept unemployment rates in...
Evan W. Anderson, Lars Peter Hansen, Thomas J. Sargent
A representative agent fears that his model, a continuous time Markov process with jump and di#usion components, is misspecified and therefore uses robust control theory to make decisions. Under the...
European Unemployment and Turbulence (2007)
Revisited In Matching, Lars Ljungqvist, Thomas J. Sargent, Christian Haefke
We recalibrate den Haan, Haefke, and Ramey's matching model to capture our preferred specification of `turbulence', modelled in terms of the transition dynamics of human capital after...
Recursive Robust Estimation and Control Without Commitment (2006)
Lars Peter Hansen, Thomas J. Sargent
In a Markov decision problem with hidden state variables, a posterior distribution serves as a state variable and Bayes ’ law under an approximating model gives its law of motion. A decision maker...
Timothy Cogley, Thomas J. Sargent, Timothy Cogley, Thomas J. Sargent
In 2005 all ECB publications will feature a motif taken from the €50 banknote.
Anticipated Utility and Rational Expectations as Approximations of Bayesian Decion Making (2005)
Timothy Cogley, Thomas J. Sargent
We study a Markov decision problem with unknown transition probabilities. We compute the exact Bayesian decision rule and compare it with two approximations. The first is an infinite-history,...
FEDERAL RESERVE BANK OF ATLANTA (2005)
ABSTRACT. The dynamics of a linear (or linearized) dynamic stochastic economic model can be expressed in terms of matrices (A,B,C,D) that define a state space system. An associated state space system...
Comment on "Adaptive Learning and Monetary Policy Design" (2004)
Journal of Money, Credit, and Banking - Volume 35, Number 6 (Part 2), December 2003
"Certainty Equivalence" and "Model Uncertainty" (2004)
Lars Peter Hansen, Thomas J. Sargent
Simon's and Theil's certainty equivalence property justifies a convenient algorithm for solving dynamic programming problems with quadratic objectives and linear transition laws: first,...
Comments and Discussion (2003)
Leeper, Eric Michael., Sargent, Thomas J.
Brookings Papers on Economic Activity - 2003, 1
Robustness and Uncertainty Aversion (2002)
Lars Peter Hansen, Lars Peter, Hansen Thomas, Noah Williams, Thomas J. Sargent, Gauhar A. Turmuhambetova
Max-min expected utility theory uses multiple prior distributions to represent a decision maker's uncertainty aversion. Robust control theory models a decision maker who fears that the data are...
Drifts and volatilities: Monetary policies and outcomes in the post WWII U.S. (2002)
Timothy Cogley, Thomas J. Sargent
For a VAR with drifting coefficients and stochastic volatilities, we present posterior densities for several objects that are of interest for designing and evaluating monetary policy. These include...
Laboratory Experiments with an Expectational Phillips Curve (2001)
Jasmina Arifovic Simon, Thomas J. Sargent, Colin Camerer, Timothy Cogley, Tom Palfrey, Christopher Sims
We pay human subjects to be the policy maker and the public in an expectational Phillips curve model. Policy makers often find ways to achieve the time-inconsistent optimal inflation rate, at least...
Optimal Taxation without State-Contingent Debt (2001)
Rao Aiyagari, Albert Marcet, Thomas J. Sargent, Juha Seppälä
In Lucas and Stokey's (1983) economy, tax rates inherit the serial correlation structure of government expenditures, belying Barro's (1979) result that taxes should be a random walk for any...
European Unemployment: From a Worker’s Perspective (2001)
Lars Ljunqvist, Thomas J. Sargent
After several decades of low unemployment rates and low mean durations of unemployment, European countries experienced high rates and average durations of unemployment during the 1980’s and...
Robustness, Detection and the Price of Risk (2000)
Evan W. Anderson, Lars Peter Hansen, Thomas J. Sargent
This paper is about models with agents whose doubts about model specification cause them to value decision rules that perform well across a set of models. Agents fear difficult-to-detect...
Comment on `Fiscal Consequences for Mexico of Adopting the Dollar' by Christopher A. Sims (2000)
Christopher A. Sims, Thomas J. Sargent
Introduction A main argument in Sims's paper is that by dollarizing, Mexico would for practical purposes stop issuing state-contingent debt, which it now issues as nominal debt. The nominal debt...
Optimal Taxation without State-Contingent Debt (2000)
Albert Marcet, Thomas J. Sargent, Juha Seppälä, Thank Lars Hansen, V. V. Chari, Darrell Due, ...
In Lucas and Stokey's (1983) economy, tax rates inherit the serial correlation structure of government expenditures, belying Barro's (1979) result that taxes should be a random walk for any...
Escaping Nash Inflation (2000)
In-Koo Cho, Thomas J. Sargent, Working Pa, Working Pa, Thoma J. Sa, Thoma J. Sa, ...
this paper obtains analytical characterizations of those escape dynamics.
Robust Permanent Income and Pricing with Filtering (2000)
Lars Peter Hansen, Thomas J. Sargent, Neng E. Wang, Prof Thomas, J. Sargent
A planner and agent in a permanent income economy cannot observe part of the state, regard their model as an approximation, and value decision rules that are robust across a set of models. They use...
Robust Control and Filtering of Forward-Looking Models (2000)
Lars Peter Hansen, Thomas J. Sargent
This paper shows how to compute robust Ramsey (aka Stackelberg) plans for linear models with forward looking private agents. We formulate a Bellman equation for the robust plan. We describe robust...
Robust Control and Filtering of Forward-Looking Models (2000)
Lars Peter Hansen, Thomas J. Sargent
This paper shows how to compute robust Ramsey (aka Stackelberg) plans for linear models with forward looking private agents. We formulate a Bellman equation for the robust plan. We describe robust...
Optimal Taxation without State-Contingent Debt (2000)
Albert Marcet, Thomas J. Sargent, Juha Seppälä, Kenneth Judd, Martin Schneider, ...
To recover a version of Barro's (1979) `random walk' tax smoothing outcome, we modify Lucas and Stokey's (1983) economy to permit only risk-free debt. This imparts near unit root like...
Five Games and Two Objective Functions that Promote Robustness (1999)
Lars Peter Hansen, Thomas J. Sargent, Larry Jones, Rodolfo Manuelli
Robust decision rules are designed to work well despite a set of possible model misspecifications. For discounted infinite horizon linear quadratic control problems, we describe two frequency domain...
Antonio Rangel, Richard Zeckhauser, Thomas J. Sargent
This paper takes up an important issue from an interchange among Muench (1977), Lucas (1977), and Peled (1982): how to compare consumption allocations in an overlapping generations economy. Rangel...
Robustness and Commitment: A Monetary Policy Example (1999)
Lars Peter Hansen, Thomas J. Sargent
This paper
Escaping Nash Inflation (1999)
In-koo Cho, Thomas J. Sargent, Michael Harrison
Mean dynamics govern convergence to rational expectations equilibria of self-referential systems under least squares learning. We highlight escape dynamics that propel away from a rational...
Robust Permanent Income and Pricing (1999)
By Lars Peter, Lars Peter Hansen, Thomas J. Sargent, Thomas D. Tallarini
This paper studies consumption and savings profiles and security market prices in a permanent income model when consumers are robust decision makers. Robust decision makers and expected utility...
Robust Permanent Income and Pricing (1999)
Lars Peter Hansen, Thomas J. Sargent, Thomas D. Tallarini
This paper studies consumption and savings pro#les and security market prices in a permanent income model when consumers are robust decision makers. Robust decision makers and expected utility...
Robust Permanent Income and Pricing (1999)
Lars Peter Hansen, Thomas J. Sargent, Thomas D. Tallarini
This paper studies consumption and savings profiles and security market prices in a permanent income model when consumers are robust decision makers. Robust decision makers and expected utility...
Optimal fiscal policy in a linear stochastic economy (1998)
Thomas J. Sargent, Francois R. Velde
those of the Federal Reserve Bank of Chicago or the Federal Reserve System.
Projected U.S. Demographics and Social Security (1998)
Mariacristina De Nardi, Selahattin Imrohoroglu, Thomas J. Sargent
this paper at the Federal Reserve Macro System Committee Meeting, the University of Minnesota, the London School of Economics, the Universitat Pompeu Fabra and the 1998 Latin American and Caribbean...
The European Unemployment Dilemma (1998)
By Lars Ljungqvist, Thomas J. Sargent
Introduction During their first decades, European welfare states exhibited unemployment rates equal to or less than those of other market economies; but in the 1980's, they suffered large...
The Big Problem of Small Change (1998)
Thomas J. Sargent, Francois R. Velde
this paper, and traces England's inability to adopt the gold standard before the 19th century to the problem of small change. She finds that "technological di#culties (the threat of...
Discussion of `Policy Rules for Open Economies' by Laurence Ball (1998)
Laurence Ball, Thomas J. Sargent
mpatible with Ball's motivation of his work as a sensitivity exercise designed to explore how augmenting the government's model to incorporate aspects of a foreign sector will a#ect the...
Risk and Robustness in General Equilibrium (1998)
Evan W. Anderson, Lars Peter Hansen, Thomas J. Sargent
This paper extends the analysis of HST to economies with equilibrium allocations that solve continuous time optimal resource allocation problems. Most of our results exploit the analytical...
Coinage, Debasements, and Gresham's Laws (1997)
Thomas Sargent Hoover, Thomas J. Sargent, Bruce D. Smith, Francois Velde, Neil Wallace, Warren Weber, ...
this paper, we use a model in which coins circulate by face value or tale to explain this behavior. Modelling circulation by tale elucidates this `debasement puzzle' (a phrase of Rolnick, Weber,...
Two Computations to Fund Social Security (1997)
We use a general equilibrium model to study the impact of fully funding social security on the distribution of consumption across cohorts and over time. In an initial stationary equilibrium with an...
Accounting for the Federal Government's Cost of Funds (1997)
George Hall And, George J. Hall, Thomas J. Sargent, For Example, The New York
This paper extends estimates and arguments from Sargent (1993).
The European Unemployment Dilemma (1997)
Lars Ljungqvist, Thomas J. Sargent
Introduction During their first decades, European welfare states exhibited unemployment rates equal to or less than those of other market economies; but in the 1980's, they suffered large...
Accounting for the Federal Government's Cost of Funds (1997)
George J. Hall, Thomas J. Sargent, For Example, The New York
This paper extends estimates and arguments from Sargent (1993).
Learning to be Credible (1997)
This paper was prepared for presentation at the conference to celebrate the Bank of Portugal's 150
Robust Permanent Income and Pricing (1997)
Lars Peter Hansen, Thomas J. Sargent, Thomas D. Tallarini, John Heaton, Narayana Kocherlakota, ...
This paper uses a permanent income model as a laboratory to study how consumption /savings profiles and security market prices are altered when consumers are `robust decision makers'. Robust...
Optimal Taxation without State-Contingent Debt (1996)
Marcet, Albert, Sargent, Thomas J., Seppälä, Juha
To recover a version of Barro's (1979) `random walk' tax smoothing outcome, we modify Lucas and Stokey's (1983) economy to permit only risk--free debt. This imparts near unit root like behavior to...
Mechanics of Forming and Estimating Dynamic Linear Economies (1996)
Evan W. Anderson, Lars Peter Hansen, Ellen R. Mcgrattan, Ellen R. Mcgrattan, Thomas J. Sargent, Thomas J. Sargent
This paper catalogues formulas that are useful for estimating dynamic linear economic models. We describe algorithms for computing equilibria of an economic model and for recursively computing a...
Mechanics of Forming and Estimating Dynamic Linear Economies (1996)
Evan W. Anderson, Evan W. Anderson, Lars Peter Hansen, Lars Peter Hansen, Ellen R. Mcgrattan, Ellen R. Mcgrattan, ...
This paper catalogues formulas that are useful for estimating dynamic linear economic models. We describe algorithms for computing equilibria of an economic model and for recursively computing a...
Two Computations to Fund Social Security (1996)
He Huang, Selahattin Imrohoroglu, Thomas J. Sargent
We use a general equilibrium model to study the impact of fully funding social security on the distribution of consumption across cohorts and over time. In an initial stationary equilibrium with an...
Neural Networks for Encoding and Adapting in Dynamic Economies (1995)
this paper draw heavily on materials in chapters 3 and 4 of Sargent's Bounded Rationality in Macroeconomics, Oxford University Press, 1993. 2 Neural Networks for Encoding and Adapting in Dynamic...
An Appreciation of A.W. Phillips (1995)
Lars P. Hansen, Thomas J. Sargent
A way to honor A. W. Phillips is to describe the continuing influence of one of his enduring contributions to economic dynamics, his remarkable 1959 Biometrika paper about how discrete time...
Coinage, Debasements, and Gresham's Laws (1995)
Thomas J. Sargent, Bruce D. Smith, Neil Wallace, Warren Weber
this paper, we use a model in which coins circulate by face value or tale to explain this behavior. Modelling circulation by tale elucidates this `debasement puzzle' (a phrase of Rolnick, Weber,...
Discounted Linear Exponential Quadratic Gaussian Control (1994)
Lars Peter Hansen, Thomas J. Sargent
: We describe a recursive formulation of discounted costs for a linear quadratic exponential Gaussian linear regulator problem which implies time-invariant linear decision rules in the infinite...
Research Department Federal Reserve Bank of Richmond April 22, 1994 (1994)
Pr Il, Raymond E. Owens, John E. Leonard, Thomas J. Sargent
: Overbuilding in commercial real estate in the 1980s is commonly viewed as an example of a speculative bubble. This paper questions that view and proposes an environment in which overbuilding could...
A dynamic index model for large cross sections (1993)
Quah, Danny, Sargent, Thomas J
This paper shows how standard methods can be used to formulate and estimate a dynamic index model for random fields - stochastic processes indexed by time and cross section where the time-series and...
A dynamic index model for large cross sections (1993)
Quah, Danny, Sargent, Thomas J
This paper shows how standard methods can be used to formulate and estimate a dynamic index model for random fields - stochastic processes indexed by time and cross section where the time-series and...
Dymamic macroeconomic theory / Thomas J. Sargent (1987)
Incluye bibliografía e índice
Exercises in dinamic macroeconomic theory / Rodolfo E. Manuelli and Thomas J. Sargent (1987)
Manuelli, Rodolfo E, Sargent, Thomas J
Incluye bibliografía e índice
Teoría macroeconómica / Thomas J. Sargent (1982)
Traducción de: Macroeconomic theory
Teoría macroeconómica / Thomas J. sargent (1982)
Traducción de: Macroeconomic theory
Knowing the Forecasts of Others
Joseph G. Pearlman, Thomas J. Sargent
We apply recursive methods to obtain a finite dimensional and recursive representation of an equilibrium of one of Townsend's models of 'forecasting the forecasts of others'. The equilibrium has the...
Jobs and Unemployment in Macroeconomic Theory: A Turbulence Laboratory
Ljungqvist, Lars, Sargent, Thomas J
We use three general equilibrium frameworks with jobs and unemployed workers to study the effects of government mandated unemployment insurance (UI) and employment protection (EP). To illuminate the...
Mechanics of forming and estimating dynamic linear economies
Lars Peter Hansen, Ellen R. McGrattan, Thomas J. Sargent
This paper catalogues formulas that are useful for estimating dynamic linear economic models. We describe algorithms for computing equilibria of an economic model and for recursively computing a...
On the mechanics of forming and estimating dynamic linear economies
Evan W. Anderson, Lars Peter Hansen, Ellen R. McGrattan, Thomas J. Sargent
This paper catalogues formulas that are useful for estimating dynamic linear economic models. We describe algorithms for computing equilibria of an economic model and for recursively computing a...
Mechanics of forming and estimating dynamic linear economies
Anderson, Evan W., McGrattan, Ellen R., Hansen, Lars Peter, Sargent, Thomas J., H. M. Amman, D. A. Kendrick, ...
Neural networks for encoding and adapting in dynamic economies
Cho, In-Koo, Sargent, Thomas J., H. M. Amman, D. A. Kendrick, J. Rust
Optimal Fiscal Policy in a Linear Stochastic Economy
Thomas J. Sargent, Francois R. Velde
This code supports the text in Thomas J. Sargent and Francois R. Velde, Optimal Fiscal Policy in a Linear Stochastic Economy, in Ramon Marimon and Andrew Scott (eds), Computational Methods for the...
Drift and Volatilities: Monetary Policies and Outcomes in the Post WWII U.S.
Timothy Cogley, Thomas J. Sargent
For a VAR with drifting coefficients and stochastic volatilities, we present posterior densities for several objects that are pertinent for designing and evaluating monetary policy. These include...
Impacts of Priors on Convergence and Escapes from Nash Inflation
Thomas J. Sargent, Noah William
Recent papers have analyzed how economies with adaptive agents may converge to and escape from self-confirming equilibria. These papers have imputed to agents a particular prior about drifting...
Knowing the Forecasts of Others
Joseph G. Pearlman, Thomas J. Sargent
We apply recursive methods to obtain a finite dimensional and recursive representation of an equilibrium of one of Townsend's models of 'forecasting the forecasts of others'. The equilibrium has the...
The conquest of US inflation: Learning and robustness to model uncertainty
Timothy Cogley, Thomas J. Sargent
Previous studies have interpreted the rise and fall of US inflation after World War II in terms of the Fed's changing views about the natural rate hypothesis but have left an important question...
Macroeconomic Features of the French Revolution.
Sargent, Thomas J, Velde, Francois R
This paper describes aspects of the French Revolution from the perspective of theories about money and government budget constraints. The authors describe how unpleasant fiscal arithmetic gripped the...
The European Unemployment Experience: Theoretical Robustness
Thomas J. Sargent, Lars Ljungqvist
European unemployment
Optimal Taxation without State-Contingent Debt
S. Rao Aiyagari, Albert Marcet, Thomas J. Sargent, Juha Seppala
In an economy studied by Lucas and Stokey, tax rates inherit the serial correlation structure of government expenditures, belying Barro's earlier result that taxes should be a random walk for any...
Chapter 4 Mechanics of forming and estimating dynamic linear economies
Anderson, Evan W., McGrattan, Ellen R., Hansen, Lars Peter, Sargent, Thomas J.
A, B, C's (and D)'s for Understanding VARs
Jesus Fernandez-Villaverde, Juan Rubio-Ramirez, Thomas J. Sargent
The dynamics of a linear (or linearized) dynamic stochastic economic model can be expressed in terms of matrices (A,B,C,D) that define a state space system. An associated state space system...
Politics and efficiency of separating capital and ordinary Government budgets
Marco Bassetto, Thomas J. Sargent
We analyze the democratic politics and competitive economics of a ‘golden rule’ that separates capital and ordinary account budgets and allows a government to issue debt to finance only capital...
Drift and Volatilities: Monetary Policies and Outcomes in the Post WWII U.S.
Timothy Cogley, Thomas J. Sargent
For a VAR with drifting coefficients and stochastic volatilities, we present posterior densities for several objects that are pertinent for designing and evaluating monetary policy. These include...
Impacts of Priors on Convergence and Escapes from Nash Inflation
Thomas J. Sargent, Noah William
Recent papers have analyzed how economies with adaptive agents may converge to and escape from self-confirming equilibria. These papers have imputed to agents a particular prior about drifting...
Timothy Cogley, Sergei Morozov, Thomas J. Sargent
We estimate a Bayesian vector autoregression for the U.K. with drifting coefficients and stochastic volatilities. We use it to characterize posterior densities for several objects that are useful for...
A Quartet of Semigroups for Model Specification, Robustness, Prices of Risk, and Model Detection
Evan W. Anderson, Lars Peter Hansen, Thomas J. Sargent
A representative agent fears that his model, a continuous time Markov process with jump and diffusion components, is misspecified and therefore uses robust control theory to make decisions. Under the...
European Unemployment and Turbulence Revisited in a Matching Model
Lars Ljungqvist, Thomas J. Sargent
We recalibrate den Haan, Haefke, and Ramey's matching model to incorporate our preferred specification of "turbulence" as causing distinct dynamics of human capital after voluntary and involuntary...
Introduction to model uncertainty and robustness
Hansen, Lars Peter, Maenhout, Pascal, Rustichini, Aldo, Sargent, Thomas J., Siniscalchi, Marciano M.
Robust control and model misspecification
Hansen, Lars Peter, Sargent, Thomas J., Turmuhambetova, Gauhar, Williams, Noah
Do Taxes Explain European Employment? Indivisible Labour, Human Capital, Lotteries and Savings
Ljungqvist, Lars, Sargent, Thomas J
Adding generous government supplied benefits to Prescott's (2002) model with employment lotteries and private consumption insurance causes employment to implode and prevents the model from matching...
Benefits from U.S. Monetary Policy Experimentation in the Days of Samuelson and Solow and Lucas
TIMOTHY COGLEY, RICCARDO COLACITO, THOMAS J. SARGENT
A policy maker knows two models. One implies an exploitable inflation-unemployment trade-off, the other does not. The policy maker's prior probability over the two models is part of his state vector....
Mean dynamics govern convergence to rational expectations equilibria of self-referential systems under least squares learning. We highlight escape dynamics that propel away from a rational...
Taxes, Benefits, and Careers: Complete Versus Incomplete Markets
Ljungqvist, Lars, Sargent, Thomas J
An incomplete markets life-cycle model with indivisible labour makes career lengths and human capital accumulation respond to labour tax rates and government supplied non-employment benefits. We...
Rational Expectations, the Real Rate of Interest, and the Natural Rate of Unemployment
macroeconomics, real rate interest, unemployment rate
"Rational Expectations": A Correction
macroeconomics, rational expectations, unemployment
Lars Peter Hansen, Thomas J. Sargent
The standard theory of decision making under uncertainty advises the decision maker to form a statistical model linking outcomes to decisions and then to choose the optimal distribution of outcomes....
The analytics of German monetary unification
Thomas J. Sargent, Francois R. Velde
Germany ; Fiscal policy ; Mark, German
Flat rate taxes with adjustment costs and several capital stocks and household types
Lars P. Hansen, Thomas J. Sargent
Flat-rate income tax ; Econometric models
Impacts of priors on convergence and escapes from Nash inflation
Thomas J. Sargent, Noah Williams
Recent papers have analyzed how adaptive agents may converge to and escape from self-confirming equilibria. All of these papers have imputed to agents a particular prior about drifting coefficients....
Drifts and volatilities: monetary policies and outcomes in the post WWII U.S.
Timothy Cogley, Thomas J. Sargent
For a VAR with drifting coefficients and stochastic volatilities, the authors present posterior densities for several objects that are of interest for designing and evaluating monetary policy. These...
A, B, C’s (And D’s) For Understanding VARS
Jesus Fernandez-Villaverde, Thomas J. Sargent
The dynamics of a linear (or linearized) dynamic stochastic economic model can be expressed in terms of matrices (A,B,C,D) that define a state space system. An associated state space system (A,K,C,...
Robust Permanent Income and Pricing with Filtering.
Hansen, Lars Peter, Sargent, Thomas J, Wang, Neng E
A planner and agent in a permanent-income economy cannot observe part of the state, regard their model as an approximation, and value decision rules that are robust across a set of models. They use...
The Big Problem of Small Change.
Sargent, Thomas J, Velde, Francois R
The medieval money supply mechanism implemented a commodity standard throughout the denomination structure by imposing mint and melt points for each coin. Mints stood ready to sell (but not to buy)...
Israel 1983: A Bout of Unpleasant Monetarist Arithmetic
Sargent, Thomas J, Zeira, Joseph
From 1970 to 1985, Israel experienced high inflation. It rose in three jumps to new plateaus and eventually exceeded 400% per annum. This paper claims that anticipated monetary and fiscal effects of...
On the preservation of deterministic cycles when some agents perceive them to be random fluctuations
Rational Expectations, the Real Rate of Interest, and the Natural Rate of Unemployment
macroeconomics, real rate interest, unemployment rate
"Rational Expectations": A Correction
macroeconomics, rational expectations, unemployment
Certainty equivalence and model uncertainty
Lars Peter Hansen, Thomas J. Sargent
Simon’s and Theil’s certainty equivalence property justifies a convenient algorithm for solving dynamic programming problems with quadratic objectives and linear transition laws: first, optimize...
Projected U.S. Demographics and Social Security
Mariacristina De Nardi, Selahattin Imrohoroglu, Thomas J. Sargent
Without policy reforms, the aging of the U.S. population is likely to increase the burden of the currently unfunded social security and medicare systems. In this paper we build an applied general...
ANTICIPATED UTILITY AND RATIONAL EXPECTATIONS AS APPROXIMATIONS OF BAYESIAN DECISION MAKING
Timothy Cogley, Thomas J. Sargent
We study a Markov decision problem with unknown transition probabilities. We compute the exact Bayesian decision rule and compare it with two approximations. The first is an infinite-history,...
The conquest of U.S. inflation: learning and robustness to model uncertainty
Timothy Cogley, Thomas J. Sargent
Previous studies have interpreted the rise and fall of U.S. in ation after World War II in terms of the Fed's changing views about the natural rate hypothesis but have left an important question...
Two Questions about European Unemployment
Lars Ljungqvist, Thomas J. Sargent
A general equilibrium search model makes layoff costs affect the aggregate unemployment rate in ways that depend on equilibrium proportions of frictional and structural unemployment that in turn...
ABCs (and Ds) of Understanding VARs
Jesús Fernández-Villaverde, Thomas J. Sargent, Mark W. Watson
The dynamics of a linear (or linearized) dynamic stochastic economic model can be expressed in terms of matrices (A, B, C, D) that define a state space system for a vector of observables. An...
Cho, In-Koo, Williams, Noah, Sargent, Thomas J
An ordinary differential equation (ODE) gives the mean dynamics that govern the convergence to self-confirming equilibria of self-referential systems under discounted least squares learning. Another...
Rational expectations, econometric exogeneity and consumption
Consumption (Economics) ; Econometrics
Estimation of dynamic labor demand schedules under rational expectations
A dynamic linear demand schedule for labor is estimated and tested. The hypothesis of rational expectations and assumptions about the orders of the Markov processes governing technology impose...
Interpreting economic time series
This paper explores some of the implications for econometric practice of the principle that people’s observed behavior will change when their constraints change. In dynamic contexts, a proper...
Methods for estimating continuous time Rational Expectations models from discrete time data
Lars Peter Hansen, Thomas J. Sargent
This paper describes methods for estimating the parameters of continuous time linear stochastic rational expectations models from discrete time observations. The economic models that we study are...
Rational expectations models and the aliasing phenomenon
Lars Peter Hansen, Thomas J. Sargent
This paper shows how the cross-equation restrictions delivered by the hypothesis of rational expectations can serve to solve the aliasing identification problem. It is shown how the rational...
The real bills doctrine vs. the quantity theory: a reconsideration
Thomas J. Sargent, Neil Wallace
On our interpretation, real bills advocates favor unfettered intermediation, while their critics, who we call quantity theorists, favor legal restrictions on intermediation geared to separate...
A note on Wiener-Kolmogorov prediction formulas for rational expectations models
Lars Peter Hansen, Thomas J. Sargent
A prediction formula for geometrically declining sums of future forcing variables is derived for models in which the forcing variables are generated by a vector autoregressive-moving average process....
Instrumental variables procedures for estimating linear rational expectations models
Lars Peter Hansen, Thomas J. Sargent
A prediction formula for geometrically declining sums of future forcing variables is derived for models in which the forcing variables are generated by a vector autoregressive-moving average process....
Exact linear rational expectations models: specification and estimation
Lars Peter Hansen, Thomas J. Sargent
This paper describes how to specify and estimate rational expectations models in which there are exact linear relationships among variables and expectations of variables that the econometrician...
The dimensionality of the aliasing problem in models with rational spectral densities
Lars Peter Hansen, Thomas J. Sargent
This paper reconsiders the aliasing problem of identifying the parameters of a continuous time stochastic process from discrete time data. It analyzes the extent to which restricting attention to...
Lars Peter Hansen, Thomas J. Sargent
This paper describes the continuous time stochastic process for money and inflation under which Cagan’s adaptive expectations model is optimal. It then analyzes how data formed by sampling money...
Formulating and estimating continuous time rational expectations models
Lars Peter Hansen, Thomas J. Sargent
This paper proposes a method for estimating the parameters of continuous time, stochastic rational expectations models from discrete time observations. The method is important since various heuristic...
Beyond demand and supply curves in macroeconomics
This paper surveys recent issues in macroeconomics from the viewpoint of dynamic economic theory. The need to look beyond demand and supply curves and the insights that come from doing so are...
Identification of continuous time rational expectations models from discrete time data
Lars Peter Hansen, Thomas J. Sargent
This paper shows how the cross-equation restrictions implied by dynamic rational expectations models can be used to resolve the aliasing identification problem. Using a continuous time,...
Thomas J. Sargent, Neil Wallace
Commodity money is modeled as one or two of the capital goods in a one-consumption good and one or two capital-good, overlapping generations model. Among the topics addressed using versions of the...
Thomas J. Sargent, Francois R. Velde
Western Europe was plagued with currency shortages from the 14th to the 19th century, at which time a `standard formula' had been devised to cure the problem. We document the evolution of mon- etary...
The big problem of small change
Thomas J. Sargent, Francois R. Velde
Western Europe was plagued with currency shortages from the 14th century, at which a 'standard formula' had been devised to cure the problem. We use a cash-in-advance model of commodity money to...
Recursive linear models of dynamic economies
Lars Peter Hansen, Thomas J. Sargent
Econometric models
Flat rate taxes with adjustment costs and several capital stocks and household types
Lars Peter Hansen, Thomas J. Sargent
Flat-rate income tax ; Econometric models
A dynamic index model for large cross sections
This paper shows how standard methods can be used to formulate and estimate a dynamic index model for random fields—stochastic processes indexed by time and cross section where the time-series and...
A supply-side explanation of European unemployment
Lars Ljungqvist, Thomas J. Sargent
This article offers a supply-side explanation of striking patterns in unemployment rates and duration of unemployment in European countries, compared with other member countries of the OECD...
Accounting for the federal government's cost of funds
George J. Hall, Thomas J. Sargent
This article describes and defends the authors' corrections to the federal government's flawed measure of its cost of funds. Further, it examines how the maturity structure of the debt influences the...
Commentary : the evolution of economic understanding and postwar stabilization policy
Economic stabilization ; Fiscal policy ; Monetary policy
Projected U.S. demographics and social security
Mariacristina De Nardi, Selahattin Imrohoglu, Thomas J. Sargent
Without policy reforms, the aging of the U.S. population is likely to increase the burden of the currently unfunded social security and medicare systems. In this paper we build an applied general...
Politics and efficiency of separating capital and ordinary Government budgets
Marco Bassetto, Thomas J. Sargent
We analyze the democratic politics and competitive economics of a ‘golden rule’ that separates capital and ordinary account budgets and allows a government to issue debt to finance only capital...
Rational expectations and the theory of economic policy
Thomas J. Sargent, Neil Wallace
Monetary policy - Mathematical models
Unemployment and stabilization policy in a two-sector, two-country aggregative model
Dale W. Henderson, Thomas J. Sargent
Unemployment
A little bit of evidence on the natural rate hypothesis from the U.S
Salih Neftci, Thomas J. Sargent
Econometric models
The observational equivalence of natural and unnatural rate theories of macroeconomics
Macroeconomics
Inflation (Finance)
Seasonality and portfolio balance under rational expectations
Rusdu Saracoglu, Thomas J. Sargent
Portfolio management
Observations on improper methods of simulating and teaching Friedman's time series consumption model
Friedman, Milton
Business cycle modeling without pretending to have too much a priori economic theory
Thomas J. Sargent, Christopher A. Sims
Business cycles
Formulating and estimating dynamic linear rational expectations models
Lars Peter Hansen, Thomas J. Sargent
This paper describes methods for conveniently formulating and estimating dynamic linear econometric models under the hypothesis of rational expectations. An econometrically convenient formula for the...
Identification and estimation of a model of hyperinflation with a continuum of "sunspot" equilibrium
Thomas J. Sargent, Neil Wallace
This paper constructs a model with two structural equations: the Government budget constraint and a linear version of Cagan’s portfolio balance equation. The model contains a continuum of...
Politics and Efficiency of Separating Capital and Ordinary Government Budgets
Thomas J. Sargent, Marco Bassetto
We analyze the democratic politics of a rule that separates capital and ordinary account budgets and allows the government to issue debt only to finance capital items. Many national governments...
Indivisible Labor and Its Supply Elasticity: Do Taxes Explain European Employment?
Lars Ljungqvist, Thomas J. Sargent
We first scrutinize and challenge Prescott's (2002, 2004) quantitative analysis of the role of differences in taxes in explaining cross-country differences in labor market outcomes, and then defend...
Acknowledging Misspecification in Macroeconomic Theory
Lars Peter Hansen, Thomas J. Sargent
We explore methods for confronting model misspecification in macroeconomics. We construct dynamic equilibria in which private agents and policy makers recognize that models are approximations. We...
The European Unemployment Dilemma
Ljungqvist, Lars, Sargent, Thomas J.
Post World War II European welfare states experienced several decades of relatively low unemployment, followed by a plague of persistently high unemployment since the 1980s. We impute the higher...
The European Unemployment Dilemma
Ljungqvist, Lars, Sargent, Thomas J.
Post World War II European welfare states experienced several decades of relatively low unemployment, followed by a plague of persistently high unemployment since the 1980s. We impute the higher...
The European Employment Experience
Ljungqvist, Lars, Sargent, Thomas J
Similar durations but lower flows into unemployment gave Europe lower unemployment rates than the United States until the 1970's. But since 1980, higher durations have kept unemployment rates in...
European Unemployment and Turbulence Revisited in a Matching Model
Ljungqvist, Lars, Sargent, Thomas J
We recalibrate den Haan, Haefke, and Ramey's matching model to incorporate our preferred specification of 'turbulence' as causing distinct dynamics of human capital after voluntary and involuntary...
TWO COMPUTATIONS TO FUND SOCIAL SECURITY
HUANG, HE, IMROHOROG[caron]LU, SELAHATTIN, SARGENT, THOMAS J.
We use a general equilibrium model to study the impact offully funding social security on the distribution of consumptionacross cohorts and over time. In an initial stationary equilibriumwith an...
Politics and Efficiency of Separating Capital and Ordinary Government Budgets
Marco Bassetto, Thomas J Sargent
We analyze a "golden rule" that separates capital and ordinary account budgets and allows a government to finance only capital items with debt. Many national governments followed this rule in the...
Coinage, debasements, and Gresham's laws
Bruce D. Smith, Thomas J. Sargent
This paper formulates a model of commodity money that circulates by tale, and applies it to a variety of situations, some of which seem to confirm, and others to contradict, `Gresham's Law'. We...
Welfare States and Unemployment.
Ljungqvist, Lars, Sargent, Thomas J
This paper studies equilibrium unemployment in a search model where the government both provides liberal unemployment insurance and taxes labor at high progressive tax rates. It is shown how...
Speed of Convergence of Recursive Least Squares Learning with ARMA Perceptions
Albert Marcet, Thomas J. Sargent
This paper fills a gap in the existing literature on least squares learning in linear rational expectations models by studying a setup in which agents learn by fitting ARMA models to a subset of the...
Optimal Taxation without State-Contingent Debt
Albert Marcet, Thomas J. Sargent, Juha Seppala
To recover a version of Barro's (1979) `random walk' tax smoothing outcome, we modify Lucas and Stokey's (1983) economy to permit only risk--free debt. This imparts near unit root like behavior to...
Recursive robust estimation and control without commitment
Hansen, Lars Peter, Sargent, Thomas J.
In a Markov decision problem with hidden state variables, a posterior distribution serves as a state variable and Bayes' law under an approximating model gives its law of motion. A decision maker...
The market price of risk and the equity premium: A legacy of the Great Depression?
Cogley, Timothy, Sargent, Thomas J.
By positing learning and a pessimistic initial prior, we build a model that disconnects a representative consumer's subjective attitudes toward risk from the high price of risk that a...
Taxes, benefits, and careers: Complete versus incomplete markets
Ljungqvist, Lars, Sargent, Thomas J.
An incomplete-market life-cycle model with indivisible labor makes career lengths and human capital accumulation respond to labor tax rates and government supplied non-employment benefits. We compare...
Recursive Linear Models of Dynamic Economies
Lars Peter Hansen, Thomas J. Sargent
This paper describes a class of dynamic stochastic linear quadratic equilibrium models. A model is specified by naming lists of matrices that determine preferences, technology, and the information...
Inflation-Gap Persistence in the U.S.
Timothy Cogley, Giorgio E. Primiceri, Thomas J. Sargent
We use Bayesian methods to estimate two models of post WWII U.S. inflation rates with drifting stochastic volatility and drifting coefficients. One model is univariate, the other a multivariate...
Marcet, Albert, Sargent, Thomas J
The authors study the convergence of recursive least-squares learning schemes in economic environments in which there is private information. The presence of private information leads to the presence...
Two Models of Measurements and the Investment Accelerator.
This paper describes two models of an agency that is collecting and reporting observations on a dynamical linear stochastic economy. The first is a "classical" model, with the agency reporting data...
A supply-side explanation of European unemployment
Lars Ljungqvist, Thomas J. Sargent
This article offers a supply-side explanation of striking patterns in unemployment rates and duration of unemployment in European countries, compared with other member countries of the OECD...
Robustness and U.S. Monetary Policy Experimentation
TIMOTHY COGLEY, RICCARDO COLACITO, LARS PETER HANSEN, THOMAS J. SARGENT
We study how a concern for robustness modifies a policymaker's incentive to experiment. A policymaker has a prior over two submodels of inflation-unemployment dynamics. One submodel implies an...
TWO COMPUTATIONS TO FUND SOCIAL SECURITY
HUANG, HE, IMROHOROG[caron]LU, SELAHATTIN, SARGENT, THOMAS J.
We use a general equilibrium model to study the impact offully funding social security on the distribution of consumptionacross cohorts and over time. In an initial stationary equilibriumwith an...
ROBUST PERMANENT INCOME AND PRICING WITH FILTERING
Hansen, Lars Peter, Sargent, Thomas J., Wang, Neng E.
A planner and agent in a permanent-income economy cannot observe part of the state, regard their model as an approximation, and value decision rules that are robust across a set of models. They use...
The big problem of small change
Thomas J. Sargent, Francois R. Velde
Western Europe was plagued with currency shortages from the 14th century, at which a 'standard formula' had been devised to cure the problem. We use a cash-in-advance model of commodity money to...
Anticipated Utility and Rational Expectations as Approximations of Bayesian Decision Making
Cogley, Timothy W., Sargent, Thomas J.
For a Markov decision problem in which unknown transition probabilities serve as hidden state variables, we study the quality of two approximations to the decision rule of a Bayesian who each period...
The Market Price of Risk and the Equity Premium
Cogley, Timothy W., Sargent, Thomas J.
Friedman and Schwartz hypothesized that the Great Depression created exaggerated fears of economic instability. We quantify their idea by using a robustness calculation to shatter a representative...
Recursive Macroeconomic Theory, 2nd Edition
Lars Ljungqvist, Thomas J. Sargent
Recursive methods offer a powerful approach for characterizing and solving complicated problems in dynamic macroeconomics. Recursive Macroeconomic Theory provides both an introduction to recursive...
Benefits from U.S. monetary policy experimentation in the days of Samuelson and Solow and Lucas
Timothy Cogley, Riccardo Colacito, Thomas J. Sargent
Inflation (Finance) ; Econometric models
A Dynamic Index Model for Large Cross Sections
This paper shows how standard methods can be used to formulate and estimate a dynamic index model for random fields - stochastic processes indexed by time and cross section where the time-series and...
Martin Ellison, Thomas J. Sargent
We defend the forecasting performance of the FOMC from the recent criticism of Christina and David Romer. Our argument is that the FOMC forecasts a worst-case scenario that it uses to design...
Ellison, Martin, Sargent, Thomas J
We defend the forecasting performance of the FOMC from the recent criticism of Christina and David Romer. Our argument is that the FOMC forecasts a worst-case scenario that it uses to design...