Thomas J. Sargent

Details der Publikationsliste

Zeitraum

1979 - 2009

Anzahl

305

Co-Autoren

Testing for Neutrality and Rationality (2009)

Thomas J. Sargent

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...

Minnesota – p. 2/19 (2009)

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)

SARGENT, Thomas J.

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)

Lars Peter, Thomas J. Sargent

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)

Lars Peter, Thomas J. Sargent

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)

In-koo Cho, Thomas J. Sargent

This paper was prepared for presentation at the conference to celebrate the Bank of

Neural Networks for Encoding and Adapting in Dynamic Economies (2007)

In-koo Cho, Thomas J. Sargent

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...

A Quartet of Semi-Groups for Model Specification, Detection, Robustness, and the Price of Risk (2007)

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...

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)

Thomas J. Sargent

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)

Sargent, Thomas J.

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...

Discussion of "Can Market and Voting Institutions Generate Optimal Intergenerational Risk Sharing?" by Antonio Rangel and Richard Zeckhauser (1999)

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...

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)

He Huang, 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...

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...

Learning to be Credible (1997)

In-koo Cho, Thomas J. Sargent

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)

In-koo Cho, Thomas J. Sargent

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...

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...

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...

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...

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...

Interpreting the Reagan deficits

Thomas J. Sargent

Budget deficits ; Expenditures, Public

Bayesian Fan Charts for U.K. Inflation: Forecasting and Sources of Uncertainty in an Evolving Monetary System

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...

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....

Escaping Nash inflation.

In-Koo Cho, Thomas J. Sargent

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": A Correction

Thomas J. Sargent

macroeconomics, rational expectations, unemployment

Introduction to Robustness

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....

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...

"Rational Expectations": A Correction

Thomas J. Sargent

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...

Escaping Nash Inflation.

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...

Estimation of dynamic labor demand schedules under rational expectations

Thomas J. Sargent

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

Thomas J. Sargent

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...

Aggregation over time and the inverse optimal predictor problem for adaptive expectations in continuous time

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

Thomas J. Sargent

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,...

A model of commodity money

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...

The evolution of small change

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...

A dynamic index model for large cross sections

Danny Quah, Thomas J. Sargent

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...

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...

Naive business cycle theory

Thomas J. Sargent

Business cycles - Econometric models

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...

Convergence of Least-Squares Learning in Environments with Hidden State Variables and Private Information.

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.

Sargent, Thomas J

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...

A Dynamic Index Model for Large Cross Sections

Danny Quah, Thomas J. Sargent

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 defence of the FOMC

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...

A defence of the FOMC

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...