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Report
Evaluating interest rate rules in an estimated DSGE model
The empirical DSGE (dynamic stochastic general equilibrium) literature pays surprisingly little attention to the behavior of the monetary authority. Alternative policy rule specifications abound, but their relative merit is rarely discussed. We contribute to filling this gap by comparing the fit of a large set of interest rate rules (fifty-five in total), which we estimate within a simple New Keynesian model. We find that specifications in which monetary policy responds to inflation and to deviations of output from its efficient level?the one that would prevail in the absence of ...
Working Paper
Demographics and real interest rates: inspecting the mechanism
The demographic transition can affect the equilibrium real interest rate through three channels. An increase in longevity?or expectations thereof?puts downward pressure on the real interest rate, as agents build up their savings in anticipation of a longer retirement period. A reduction in the population growth rate has two counteracting effects. On the one hand, capital per-worker rises, thus inducing lower real interest rates through a reduction in the marginal product of capital. On the other hand, the decline in population growth eventually leads to a higher dependency ratio (the fraction ...
Report
House price booms, current account deficits, and low interest rates
One of the most striking features of the period before the Great Recession is the strong positive correlation between house price appreciation and current account deficits, not only in the United States but also in other countries that have subsequently experienced the highest degree of financial turmoil. A progressive relaxation of credit standards can rationalize this empirical observation. Lower collateral requirements facilitate access to external funding and drive up house prices. The current account turns negative because households borrow from the rest of the world. At the same time, ...
Journal Article
Underlying Trends in the U.S. Neutral Interest Rate
After a prolonged decline, U.S. inflation-adjusted interest rates have increased somewhat since the pandemic—possibly implying a higher new normal. As central banks attempt to tame the post-pandemic inflationary bout, whether real rates will fall back closer to pre-pandemic levels will ultimately depend on the trends in their long-term underlying determinants. Estimates suggest that the pre-pandemic downward pressures from global factors and from U.S. population aging have faded, while fiscal conditions continue to put upward pressure on U.S. real rates.
Working Paper
Can structural reforms help Europe?
Structural reforms that increase competition in product and labor markets are often indicated as the main policy option available for peripheral Europe to regain competitiveness and boost output. We show that, in a crisis that pushes the nominal interest rate to its lower bound, these reforms do not support economic activity in the short run, and may well be contractionary. Absent the appropriate monetary stimulus, reforms fuel expectations of prolonged deation, increase the real interest rate, and depress aggregate demand. Our findings carry important implications for the current debate on ...
Journal Article
Demographic Transition and Low U.S. Interest Rates
Interest rates have been trending down for more than two decades. One possible explanation is the dramatic worldwide demographic transition, with people living longer and population growth rates declining. This demographic transition in the United States?particularly the steady increase in life expectancy?put significant downward pressure on interest rates between 1990 and 2016. Because demographic movements tend to be long-lasting, their ongoing effects could keep interest rates near the lower bound longer. This has the potential to limit the scope for central banks to respond to future ...
Journal Article
How stimulatory are large-scale asset purchases?
The Federal Reserve?s large-scale purchases of long-term Treasury securities most likely provided a moderate boost to economic growth and inflation. Importantly, the effects appear to depend greatly on the Fed?s guidance that short-term interest rates would remain low for an extended period. Indeed, estimates from a macroeconomic model suggest that such interest rate forward guidance probably has greater effects than signals about the amount of assets purchased.
Report
The long-run determinants of U.S. external imbalances
This paper develops a tractable two-country model with life-cycle structure to investigate analytically and quantitatively three potential determinants of the U.S. external imbalances in the last three decades: productivity growth, demographic factors, and fiscal policy. The results suggest that (1) productivity growth differentials are the main driving force at high frequencies, (2) the different evolution of demographic factors across countries accounts for a large portion of the long-run trend, and (3) fiscal policy plays, at best, a minor role. The main prediction of the analysis is that ...
Report
The macroeconomic effects of large-scale asset purchase programs
The effects of asset purchase programs on macroeconomic variables are likely to be moderate. We reach this conclusion after simulating the impact of the Federal Reserve?s second large-scale asset purchase program (LSAP II) in a DSGE model enriched with a preferred habitat framework and estimated on U.S. data. Our simulations suggest that such a program increases GDP growth by less than half a percentage point, although the effect on the level of GDP is very persistent. The program?s marginal contribution to inflation is very small. One key reason for our findings is that we estimate a small ...
Working Paper
The macroeconomic effects of large-scale asset purchase programs
We simulate the Federal Reserve second Large-Scale Asset Purchase program in a DSGE model with bond market segmentation estimated on U.S. data. GDP growth increases by less than a third of a percentage point and inflation barely changes relative to the absence of intervention. The key reasons behind our findings are small estimates for both the elasticity of the risk premium to the quantity of long-term debt and the degree of financial market segmentation. Absent the commitment to keep the nominal interest rate at its lower bound for an extended period, the effects of asset purchase programs ...