Department of Economics
University of California at Davis
1 Shields Avenue
Davis, CA 95616
NBER Working Papers and Publications
|October 2016||Log-linear Approximation versus an Exact Solution at the ZLB in the New Keynesian Model|
with Gauti B. Eggertsson: w22784
How accurate is a log-linear approximation of the New Keynesian model when the nominal interest rate is bounded by zero? This paper compares the solution of the exact non-linear model to the log-linear approximation. It finds that the difference is modest. This applies even for extreme events in numerical experiments that replicate the U.S. Great Depression. The exact non-linear model makes the same predictions as the log-linear approximation for key policy questions such as the size and sign of government spending and tax multipliers. It also replicates well known paradoxes like the paradox of toil and the paradox of price flexibility. The paper also reconciles different findings reported in the literature using Calvo versus Rotemberg pricing.
|June 2016||A Contagious Malady? Open Economy Dimensions of Secular Stagnation|
with Gauti B. Eggertsson, Neil R. Mehrotra, Lawrence H. Summers: w22299
Conditions of secular stagnation - low interest rates, below target inflation, and sluggish output growth - characterize much of the global economy. We consider an overlapping generations, open economy model of secular stagnation, and examine the effect of capital flows on the transmission of stagnation. In a world with a low natural rate of interest, greater capital integration transmits recessions across countries as opposed to lower interest rates. In a global secular stagnation, expansionary fiscal policy carries positive spillovers implying gains from coordination, and fiscal policy is self-financing. Expansionary monetary policy, by contrast, is beggar-thy-neighbor with output gains in one country coming at the expense of the other. Similarly, we find that competitiveness policies in...
Published: Gauti B. Eggertsson & Neil R. Mehrotra & Sanjay R. Singh & Lawrence H. Summers, 2016. "A Contagious Malady? Open Economy Dimensions of Secular Stagnation," IMF Economic Review, Palgrave Macmillan;International Monetary Fund, vol. 64(4), pages 581-634, November. citation courtesy of