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Working Paper
Money and finance in a model of costly commitment
Working Paper
On the aggregate welfare cost of Great Depression unemployment
The potential benefit of policies that eliminate a small likelihood of economic crises is calculated. An economic crisis is defined as an increase in unemployment of the magnitude observed during the Great Depression. For the U.S., the maximum-likelihood estimate of entering a depression is found to be about once every 83 years. The welfare gain from setting this small probability to zero can range between 1 and 7 percent of annual consumption in perpetuity. For most estimates, more than half of these large gains result from a reduction in individual consumption volatility. ; This paper ...
Report
Financial collapse and active monetary policy: a lesson from the Great Depression
We analyze financial collapses, such as the one that occurred during the U.S. Great Depression, from the perspective of a monetary model with multiple equilibria. The multiplicity arises from the presence of a strategic complementarity due to increasing returns to scale in the intermediation process. Intermediaries provide the link between savers and firms who require working capital for production. Fluctuations in the intermediation process are driven by variations in the confidence agents place in the financial system. From a positive perspective, our model matches closely the qualitative ...
Working Paper
A Quantitative Theory of the Credit Score
What is the role of credit scores in credit markets? We argue that it is a stand in for a market assessment of a person's unobservable type (which here we take to be patience). We pose a model of persistent hidden types where observable actions shape the public assessment of a person's type via Bayesian updating. We show how dynamic reputation can incentivize repayment without monetary costs of default beyond the administrative cost of filing for bankruptcy. Importantly we show how an economy with credit scores implements the same equilibrium allocation. We estimate the model using both ...
Working Paper
On the welfare gains of reducing the likelihood of economic crises
The authors seek to measure the potential benefit of reducing the likelihood of economic crises (defined as Depression-style collapses of economic activity). Based on the observed frequency of Depression-like events, they estimate this likelihood to be approximately one in every 83 years for the U.S. The welfare gain of reducing even this small probability of crisis to zero can range between 1.05 percent and 6.59 percent of annual consumption in perpetuity. These large gains occur because although the probability of entering a Depression-like state is small, once the state is entered it is ...
Working Paper
Capital Buffers in a Quantitative Model of Banking Industry Dynamics
We develop a model of banking industry dynamics to study the quantitative impact of regulatory policies on bank risk taking and market structure as well as the feedback effect of market structure on the efficacy of policy. Since our model is matched to U.S. data, we propose a market structure where big banks with market power interact with small, competitive fringe banks. Banks face idiosyncratic funding shocks in addition to aggregate shocks which affect the fraction of performing loans in their portfolio. A nontrivial bank size distribution arises out of endogenous entry and exit, as well ...
Working Paper
Valuation equilibria with transactions costs
Working Paper
On the welfare gains of eliminating a small likelihood of economic crises: A case for stabilization policies?
In this paper the authors estimate the potential benefit of policies that eliminate a small likelihood of economic crises. They define an economic crisis as a Depression-style collapse of economic activity. For the U.S., based on the observed frequency of Depression-like events, the authors estimate the likelihood of encountering a depression to be about once every 83 years. Even for this small probability of moving into a Depression-like state, the welfare gain from setting it to zero can range between 1 and 7 percent of annual consumption, in perpetuity. These estimates are large in ...
Working Paper
A finite-life private-information theory of unsecured consumer debt
The authors present a theory of unsecured consumer debt that does not rely on utility costs of default or on enforcement mechanisms that arise in repeated-interaction settings. The theory is based on private information about a person's type and on a person's incentive to signal his type to entities other than creditors. Specifically, debtors signal their low-risk status to insurers by avoiding default in credit markets. The signal is credible because in equilibrium people who repay are more likely to be the low-risk type and so receive better insurance terms. The authors explore two ...
Working Paper
A quantitative theory of unsecured consumer credit with risk of default
The authors study, theoretically and quantitatively, the general equilibrium of an economy in which households smooth consumption by means of both a riskless asset and unsecured loans with the option to default. The default option resembles a bankruptcy filing under Chapter 7 of the U.S. Bankruptcy Code. Competitive financial intermediaries offer a menu of loan sizes and interest rates wherein each loan makes zero profits. They prove the existence of a steady-state equilibrium and characterize the circumstances under which a household defaults on its loans. They show that their model accounts ...