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Working Paper
Enduring Relationships in an Economy with Capital and Private Information
Ravikumar, B.; Popov, Latchezar; Khan, Aubhik (2020-09)
We study efficient risk sharing in a model where agents operate linear production technologies with private information about idiosyncratic productivity. Capital is the sole factor of production, and accumulable. We establish a time-invariant, one-to-one mapping between the capital allocated to an agent and his lifetime utility entitlement. The mapping implies properties that are distinct from those in private-information endowment models. In contrast to the endowment model, the value of the risk-sharing arrangement in our model always remains above autarky value, so there is no need for ...
Working Papers , Paper 2020-034

Working Paper
Consumer Bankruptcy, Mortgage Default and Labor Supply
Li, Wenli; Meghir, Costas; Oswald, Florian (2022-08-30)
We specify and estimate a lifecycle model of consumption, housing demand and labor supply in an environment where individuals may file for bankruptcy or default on their mortgage. Uncertainty in the model is driven by house price shocks, education specific productivity shocks, and catastrophic consumption events, while bankruptcy is governed by the basic institutional framework in the U.S. as implied by Chapter 7 and Chapter 13. The model is estimated using micro data on credit reports and mortgages combined with data from the American Community Survey. We use the model to understand the ...
Working Papers , Paper 22-26

Working Paper
A Comment on 'Wealth Inequality and Endogenous Growth' by Byoungchan Lee
Gu, Shijun; Jia, Chengcheng (2022-10-17)
How does wealth inequality affect economic growth? Byoungchan Lee answers this question by developing a heterogeneous-agent model and augmenting it with endogenous firm innovation. The novel channel is that rising wealth concentration reduces aggregate demand, which gives firms a disincentive to spend on R&D and therefore leads to slower productivity growth. In this discussion, we first explain the difference in calibration strategy between Lee’s approach and the common approach in the literature, and then discuss its quantitative implications for the effect of rising inequality on ...
Working Papers , Paper 22-26

Working Paper
Optimal Taxation with Endogenous Default under Incomplete Markets
Pouzo, Demian; Presno, Ignacio (2020-08-20)
How are the optimal tax and debt policies affected if the government has the option to default on its debt? We address this question from a normative perspective in an economy with noncontingent government debt, domestic default and labor taxes. On one hand, default prevents the government from incurring future tax distortions that would come along with the service of the debt. On the other hand, default risk gives rise to endogenous credit limits that hinder the government's ability to smooth taxes. We characterize the fiscal policy and show how the option to default alters the near-unit ...
International Finance Discussion Papers , Paper 1297

Working Paper
Credit Default Swaps in General Equilibrium: Spillovers, Credit Spreads, and Endogenous Default
Darst, Matt; Refayet, Ehraz (2016-04-19)
This paper highlights two new effects of credit default swap markets (CDS) in a general equilibrium setting. First, when firms' cash flows are correlated, CDSs impact the cost of capital{credit spreads{and investment for all firms, even those that are not CDS reference entities. Second, when firms internalize the credit spread changes, the incentive to issue safe rather than risky bonds is fundamentally altered. Issuing safe debt requires a transfer of profits from good states to bad states to ensure full repayment. Alternatively, issuing risky bonds maximizes profits in good states at the ...
Finance and Economics Discussion Series , Paper 2016-042

Working Paper
The Piketty Transition
Carroll, Daniel R.; Young, Eric R. (2014-12-03)
We study the effects on inequality of a "Piketty transition" to zero growth. In a model with a worker-capitalist dichotomy, we show first that the relationship between inequality (measured as a ratio of incomes for the two types) and growth is complicated; zero growth can raise or lower inequality, depending on parameters. Extending our model to include idiosyncratic wage risk we show that growth has quantitatively negligible effects on inequality, and the effect is negative. Finally, following Piketty?s thought experiment, we study how the transition might occur without declining returns; ...
Working Papers (Old Series) , Paper 1432

Working Paper
Mixed Signals: Investment Distortions with Adverse Selection
Darst, Matt; Refayet, Ehraz (2019-06-21)
We study how adverse selection distorts equilibrium investment allocations in a Walrasian credit market with two-sided heterogeneity. Representative investor and partial equilibrium economies are special cases where investment allocations are distorted above perfect information allocations. By contrast, the general setting features a pecuniary externality that leads to trade and investment allocations below perfect information levels. The degree of heterogeneity between informed agents' type governs the direction of the distortion. Moreover, contracts that complete markets dampen the impact ...
Finance and Economics Discussion Series , Paper 2019-044

Working Paper
Majority Voting: A Quantitative Investigation
Dolmas, Jim; Carroll, Daniel R.; Young, Eric (2015-01-07)
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.
Working Papers (Old Series) , Paper 1442

Working Paper
Preventive vs. Curative Medicine: A Macroeconomic Analysis of Health Care over the Life Cycle
Ozkan, Serdar (2023-09-23)
This paper studies differences in health care usage and health outcomes between low- and high-income individuals. Using data from the Medical Expenditure Panel Survey (MEPS) I find that early in life the rich spend significantly more on health care, whereas from middle to very old age medical spending of the poor surpasses that of the rich by 25%. In addition, low-income individuals are less likely to incur any medical expenditures in a given year, yet, when they do, their expenses are more likely to be extreme. To account for these facts, I develop and estimate a life-cycle model of two ...
Working Papers , Paper 2023-025

Working Paper
How Important Is Health Inequality for Lifetime Earnings Inequality?
Hosseini, Roozbeh; Kopecky, Karen A.; Zhao, Kai (2021-01-04)
Using a dynamic panel approach, we provide empirical evidence that negative health shocks reduce earnings. The effect is primarily driven by the participation margin and is concentrated in less educated individuals and those with poor health. We build a dynamic, general equilibrium, life cycle model that is consistent with these findings. In the model, individuals whose health is risky and heterogeneous choose to either work, or not work and apply for social security disability insurance (SSDI). Health affects individuals’ productivity, SSDI access, disutility from work, mortality, and ...
FRB Atlanta Working Paper , Paper 2021-1

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