Has Fiscal Policy Helped Stabilize the Postwar U.S. Economy?
Abstract. In this paper, I consider whether postwar fiscal
policy has helped stabilize the U.S. economy. I do this by adding to the
stochastic growth model fiscal policy feedback rules estimated from postwar
data. These rules allow fiscal policies to respond to current and lagged
output and labor hours. I use the estimated policy rules to see if postwar
fiscal policy reduces output volatility and/or lengthens expansions and
shortens recessions. I find that fiscal policy in general provides little
stability on either count. I also find that the endogenous feedback rules,
by themselves, are at best moderately stabilizing and are in some cases
destabilizing.
Text
Main Text
Technical Appendix on Solving Linear Expectational
Difference Equations
Background Calculations
Data
Data Set
Underlying Spreadsheets (zipped)
Computer Code
Underlying Codes (in GAUSS, zipped). Among
other things, this includes an older version of the simplex maximization
algorithm written by Honore and Kyriazidou and downloaded from the electronic
GAUSS
library at American University, and a version of the HP filter written
by Matheny, Norden and Vigfusson and downloaded from Christian Zimmerman's
QMRBC
web site.
GAUSS
translations of LAPACK routines for the real generalized Schur decomposition,
provided by Paul
Söderlind
Solution Method
Everybody and their brother has their own special method for solving
linear expectational difference equations. Here's mine.
Technical Appendix on Solving Linear Expectational
Difference Equations
Code: Use the GAUSS files rgsar1.src, rgsar1.lcg, and the underlying
LAPACK routines, all of which are described in the readme.txt file that
accompanies the computer code.
My approach is based on the work of (especially) Paul
Klein and Christopher
Sims. You should check out their work as well.
Last Updated on April 25, 2007 by John
Jones