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Working Paper
The Macroeconomics of Irreversibility
We study aggregate capital dynamics in an investment model with idiosyncratic productivity shocks, fixed capital adjustment costs, and irreversibility driven by a wedge between capital purchase and resale prices. We derive sufficient statistics capturing the role of investment frictions on aggregate capital fluctuations, measure these statistics with investment microdata, and exploit them to discipline the capital price wedge. Irreversibility doubles the persistence of capital fluctuations and is crucial for reconciling micro-level investment behavior with macroeconomic propagation.
Working Paper
Estimating the marginal propensity to consume using the distributions of income, consumption and wealth
Recent studies of economic inequality almost always separately examine income, consumption, and wealth inequality and, hence, miss the important synergy among the three measures explicit in the life-cycle budget constraint. Using Panel Study of Income Dynamics data from 1999 through 2013, we examine whether these changes are more dramatic at higher or lower levels of wealth and find that the marginal propensity to consume is lower at higher wealth quintiles. This suggests that low-wealth households cannot smooth consumption as much as other households do, which further implies that increasing ...
Working Paper
Time-varying Volatility and the Power Law Distribution of Stock Returns
While many studies find that the tail distribution of high frequency stock returns follow a power law, there are only a few explanations for this finding. This study presents evidence that time-varying volatility can account for the power law property of high frequency stock returns. The power law coefficients obtained by estimating a conditional normal model with nonparametric volatility show a striking correspondence to the power law coefficients estimated from returns data for stocks in the Dow Jones index. A cross-sectional regression of the data coefficients on the model-implied ...
Working Paper
Wealth Distribution and Retirement Preparation Among Early Savers
This paper develops a new combined wealth measure using data from the Survey of Consumer Finances, by augmenting data on net worth with estimates of defined benefit (DB) pension wealth and expected Social Security wealth. We use this combined wealth concept to explore retirement preparation among groups of households in their pre-retirement years (40-49 and 50-59) and also to explore the concentration of wealth. We find evidence of moderate, but rising, shortfalls in retirement preparation. We also show that including DB pension and Social Security wealth results in markedly lower measures of ...
Working Paper
The Heterogeneous Effects of Government Spending : It’s All About Taxes
This paper investigates how government spending multipliers depend on the distribution of taxes across households. We exploit historical variations in the financing of spending in the U.S. since 1913 to show that multipliers are positive only when financed with more progressive taxes, and zero otherwise. We rationalize this finding within a heterogeneous-household model with indivisible labor supply. The model results in a lower labor responsiveness to tax changes for higher-income earners. In turn, spending financed with more progressive taxes induces a smaller crowding-out, and thus larger ...
Working Paper
Human Capital in a Time of Low Real Rates
We argue that a long-term low real rate environment can increase labor income inequality, amplify the emergence of the working rich, and reduce intergenerational mobility. We provide a simple model with endogenous human capital accumulation and credit constraints to demonstrate this causal link. The mechanism operates through a tilting of the human capital gradient: wealthy households, more so than poor households, will increase human capital investment in response to low rates. Normatively, these tilting responses to low rates are inefficient, but higher capital taxes are not an ideal ...
Working Paper
Inflation at the Household Level
We use scanner data to estimate inflation rates at the household level. Households' inflation rates have an annual interquartile range of 6.2 to 9.0 percentage points. Most of the heterogeneity comes not from variation in broadly defined consumption bundles but from variation in prices paid for the same types of goods. Lower-income households experience higher inflation, but most cross-sectional variation is uncorrelated with observables. Households' deviations from aggregate inflation exhibit only slightly negative serial correlation. Almost all variability in a household's inflation rate ...
Journal Article
Real-Time Estimates of Differences in Real Expenditure Growth and Inflation across Households
This article presents a framework to monitor differences in real expenditure growth and inflation in real time, focusing on variations across the expenditure distribution. High-frequency tracking of heterogeneity in real expenditure growth and inflation holds particular value for policymakers. The newly constructed time series reveals three key findings. First, households with lower expenditure levels have faced higher inflation since 2000 than those with higher expenditure levels, with significant disparities in the range of 0.57 and 1.23 percentage-point differences between 2005–2008 and ...
Working Paper
Extended Supplement to “Insurance and Inequality with Persistent Private Information”
This supplement contains auxiliary technical results and proofs omitted from Bloedel, Krishna, and Leukhina (2025) (henceforth BKL) and its Supplemental Appendix (henceforth SA). First, Section I proves parts (a)–(c) and (e)–(f) of Theorem 3 from Appendix B.1 of BKL. (Part (d) of Theorem 3 is proved in SA-E.1 of BKL.) Second, Section J proves Proposition 3.2 from Section 3.3 of BKL and Lemma B.2 from Appendix B.2 of BKL. Finally, Section K proves supporting facts for Properties (a)–(e) from Section 5.2 of BKL. Throughout, we follow the numbering and labeling conventions from BKL and its ...
Working Paper
Insurance and Inequality with Persistent Private Information
This paper studies the optimal tradeoff between insurance and inequality in economies with persistent private information.We consider a principal-agent model in which the principal insures the agent against privately-observed shocks to his endowment, which follows an ergodic finite-state Markov chain that may exhibit arbitrary serial correlation. The optimal contract always induces immiseration: the agent’s consumption and utility become arbitrarily negative in the long run. When the endowment is positively serially correlated, the optimal contract provides increasingly high-powered ...