When is the Government Spending Multiplier Large?
Lawrence J. Christiano
Northwestern University; Federal Reserve Bank of Cleveland; Federal Reserve Bank of Chicago; Federal Reserve Bank of Minneapolis; National Bureau of Economic Research (NBER)
Northwestern University; National Bureau of Economic Research (NBER)
Sergio T. Rebelo
Northwestern University - Kellogg School of Management; Centre for Economic Policy Research (CEPR); University of Rochester - Department of Economics; National Bureau of Economic Research (NBER)
NBER Working Paper No. w15394
We argue that the government-spending multiplier can be much larger than one when the zero lower bound on the nominal interest rate binds. The larger is the fraction of government spending that occurs while the nominal interest rate is zero, the larger is the value of the multiplier. After providing intuition for these results, we investigate the size of the multiplier in a dynamic, stochastic, general equilibrium model. In this model the multiplier effect is substantially larger than one when the zero bound binds. Our model is consistent with the behavior of key macro aggregates during the recent financial crisis.
Number of Pages in PDF File: 68
Date posted: October 5, 2009
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