This paper formally compares the fit of various versions of the incomplete markets model with aggregate uncertainty, relying on a simple Bayesian empirical framework. The models differ in the degree of households' heterogeneity, with a focus on the role of preferences. For every specification,...

Legislation dealing with consumer default has consistently struggled with an important trade-off: more debt forgiveness directly benefits households but indirectly makes credit more expensive. Complicating the issue is that part of the risk households face is aggregate risk. This paper asks,...

More debt forgiveness directly benefits households but indirectly makes credit more expensive. How does aggregate risk affect this trade-off? In a calibrated general equilibrium life-cycle model, aggregate risk reduces the welfare benefit of making default very costly when the costs are borne by...

In this paper we use Norwegian tax data and a novel natural experiment to isolate the impact of job loss risk on saving behavior. We find that a one percentage point increase in job loss risk increases liquid savings by roughly 1.2 - 2.0 percent. Further, we show that employment falls in...

We present a calibrated general equilibrium model in which collateral constraints substantially amplify and propagate aggregate shocks through their impact on asset prices and capital allocation. Compared to previous studies, this result is more robust and comes with more realistic interest rate...

Previous studies on financial frictions have been unable to establish the empirical significance of credit constraints in macroeconomic fluctuations. This paper argues that the muted impact of credit constraints stems from the absence of a mechanism to explain the observed persistent comovements...

The aim of this paper is to understand what a recession means for individual consumers, and to model in a life-cycle framework how individuals respond to recessions. Our focus is on the sharp increase in savings rates that have been observed in the current and recent recessions. We show...

The effect of wealth on consumption is an issue of longstanding interest to economists. Analysts believe that fluctuations in household wealth have driven major swings in economic activity. This paper considers so-called wealth effects - the impact of changes in wealth on household consumption...

Motivated by the apparent failure of the credit multiplier mechanism (CM) to deliver amplification in DSGE models, we re-examine its role in business cycles to address the question: is something wrong with the CM? Our answer is no. In coming to this answer we construct a model with reproducible...