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Working Paper
Idiosyncratic Investment Risk and Business Cycles
Goldberg, Jonathan (2014-01-10)
I show that, due to imperfect risk sharing, aggregate shocks to uncertainty about idiosyncratic return on investment generate economic contractions with elevated risk premia and a decrease in the risk-free rate. I present a tractable real business cycle model in which firms experience idiosyncratic shocks, to which managers are at least partially exposed; the distribution of these shocks is time-varying and stochastic. I show that the path for aggregate quantities, the price of physical capital, and the equity premium are the same as in a model without idiosyncratic risk, but with ...
Finance and Economics Discussion Series , Paper 2014-05

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
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

Report
Discrete Choice, Complete Markets, and Equilibrium
Mongey, Simon; Waugh, Michael E. (2024-02-07)
This paper characterizes the allocations that emerge in general equilibrium economies populated by households with preferences of the additive random utility type that make discrete consumption, employment or spatial decisions. We start with a complete markets economy where households can trade claims contingent upon the realizations of their preference shocks. We (i) establish a first and second welfare theorem, (ii) illustrate that in the absence of ex-ante trade, discrete choice economies are generically inefficient, (iii) show that complete markets are not necessary and a much smaller set ...
Staff Report , Paper 656

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
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
Occupation-level income shocks and asset returns: their covariance and implications for portfolio choice
Davis, Steven J.; Willen, Paul S. (2013-10-24)
This paper develops and applies a simple graphical approach to portfolio selection that accounts for covariance between asset returns and an investor's labor income. Our graphical approach easily handles income shocks that are partly hedgeable, multiple risky assets, multiple risky assets, many periods, and life cycle considerations.
Working Papers , Paper 13-9

Working Paper
The Financial Origins of Non-Fundamental Risk
Acharya, Sushant; Dogra, Keshav; Singh, Sanjay R. (2023-05-01)
We formalize the idea that the financial sector can be a source of non-fundamental risk. Households' desire to hedge against price volatility can generate price volatility in equilibrium, even absent fundamental risk. Fearing that asset prices may fall, risk-averse households demand safe assets from leveraged intermediaries, whose issuance of safe assets exposes the economy to self-fulfilling fire sales. Policy can eliminate nonfundamental risk by (i) increasing the supply of publicly backed safe assets, through issuing government debt or bailing out intermediaries, or (ii) reducing the ...
Working Paper Series , Paper 2023-20

Working Paper
Constrained inefficiency and optimal taxation with uninsurable risks
Nakajima, Tomoyuki; Gottardi, Piero; Kajii, Atsushi (2014-11-01)
When individuals' labor and capital income are subject to uninsurable idiosyncratic risks, should capital and labor be taxed, and if so, how? In a two-period general equilibrium model with production, we derive a decomposition formula of the welfare effects of these taxes into insurance and distribution effects. This method allows us to determine how the sign of the optimal taxes on capital and labor depends on the nature of the shocks, the degree of heterogeneity among consumers' income, and the way in which the tax revenue is used to provide lump sum transfers to consumers. When shocks ...
FRB Atlanta Working Paper , Paper 2014-25

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