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Working Paper
Loan guarantees for consumer credit markets
Loan guarantees are arguably the most widely used policy intervention in credit markets, especially for consumers. This may be natural, as they have several features that, a priori, suggest that they might be particularly effective in improving allocations. However, despite this, little is actually known about the size of their effects on prices, allocations, and welfare. ; In this paper, we provide a quantitative assessment of loan guarantees, in the context of unsecured consumption loans. Our work is novel as it studies loan guarantees in a rich dynamic model where credit allocation is ...
Working Paper
Consumer Bankruptcy and Unemployment Insurance
We quantitatively evaluate the effects of UI on bankruptcy in an equilibrium model of labor market search and defaultable debt. First, we ask whether a standard unsecured credit model extended with labor market search and matching frictions can account for the negative correlation between UI caps and bankruptcy rates observed in the data. The model can account for this fact only if estimated with the employment rate among bankruptcy filers as a target. Not matching this employment rate underestimates the consumption smoothing benefits of UI cap increases, as the model assigns too much ...
Working Paper
Capital controls or exchange rate policy? a pecuniary externality perspective
In the aftermath of the global nancial crisis, a new policy paradigm has emerged> in which old-fashioned policies such as capital controls and other government distor-> tions have become part of the standard policy toolkit (the so-called macro-prudential> policies). On the wave of this seemingly unanimous policy consensus, a new strand> of theoretical literature contends that capital controls are welfare enhancing and can> be justi ed rigorously because of second-best considerations. Within the same the-> oretical framework adopted in this fast-growing literature, we show that a credible> ...
Working Paper
Majority Voting: A Quantitative Investigation
We study the tax systems that arise in a once-and-for-all majority voting equilibrium embedded within a macroeconomic model of inequality. We find that majority voting delivers (i) a small set of outcomes, (ii) zero labor income taxation, and (iii) nearly zero transfers. We find that majority voting, contrary to the literature developed in models without idiosyncratic risk, is quite powerful at restricting outcomes; however, it also delivers predictions inconsistent with observed tax systems.
Journal Article
Debt default and the insurance of labor income risks
In this article, we evaluate in detail the role of debt forgiveness in altering the transmission of labor income risk in the absence of catastrophic out-of-pocket "expense shocks" used in the literature on consumer default. The experiments we present can be thought of as: "If we insure the out-of-pocket expenses that constitute expenditure shocks, is there still a role of debt relief as a form of insurance against 'pure labor income risk'?" We address this question by studying a range of specifications for households' attitudes toward the intra- and intertemporal properties of income ...
Working Paper
A quantitative theory of information and unsecured credit
Over the past three decades five striking features of aggregates in the unsecured credit market have been documented: (1) rising availability of credit along both the intensive and extensive margins, (2) rising debt accumulation, (3) rising bankruptcy rates and discharge in bankruptcy, (4) rising dispersion in interest rates across households, and (5) the emergence of a discount for borrowers with good credit ratings. We show that all five outcomes are quantitatively consistent with improvements in the ability of lenders to observe borrower characteristics. Part of our contribution is the ...
Working Paper
Optimal Fiscal Reform with Many Taxes
We study the optimal one-shot tax reform in the standard incomplete markets model where households differ in their wealth, earnings, permanent labor skill, and age. The government can provide transfers by raising tax revenue and has several tax instruments at its disposal: a flat capital income tax, a flat consumption tax, and a non-linear labor income tax. We compute the equilibrium and transitional dynamics for 3888 different tax combinations and find that the optimal fiscal policy funds a transfer that is above 60 percent of GDP through a combination of very high taxes on consumption and ...
Working Paper
A Note on Aggregating Preferences for Redistribution
The policy predictions of standard heterogeneous agent macroeconomic models are often at odds with observed policies. We use the 2021 General Social Survey to investigate the drivers of individuals' preferences over taxes and redistribution. We find that these preferences are more strongly associated with political identity than with economic status. We discuss the implications for quantitative macroeconomic models with endogenous policy determination.
Working Paper
Optimal policy for macro-financial stability
In this paper we study whether policy makers should wait to intervene until a financial crisis strikes or rather act in a preemptive manner. We study this question in a relatively simple dynamic stochastic general equilibrium model in which crises are endogenous events induced by the presence of an occasionally binding borrowing constraint as in Mendoza (2010). First, we show that the same set of taxes that replicates the constrained social planner allocation could be used optimally by a Ramsey planner to achieve the first best unconstrained equilibrium: in both cases without any ...
Journal Article
Zero Growth and Long-Run Inequality
Using a basic model to study both wealth and income inequality and their relations to long-run economic growth may lead to questionable conclusions. We consider a more complex model that includes realistic variation in the levels of income and wealth across households in addition to a new ingredient, luck in each household?s labor productivity. Using this model,we determine that existing estimates of the elasticity of substitution between capital and labor are generally far away from the region where inequality would explode if long-run growth were zero.