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Working Paper
The Evolution of Health over the Life Cycle
We construct a unified objective measure of health status: the frailty index, defined as the cumulative sum of all adverse health indicators observed for an individual. First, we show that the frailty index has several advantages over self-reported health status, particularly when studying health dynamics. Then we estimate a stochastic process for frailty dynamics over the life cycle. We find that the autocovariance structure of frailty in panel data strongly supports a process that allows the conditional variance of frailty shocks to increase with age. Our frailty measure and dynamic process ...
Working Paper
Delayed Collection of Unemployment Insurance in Recessions
Using variations in unemployment insurance policies over time and across U.S. states, this paper provides evidence that allowing unemployed workers to delay the collection of benefits increases their job-finding rate. In a model with discrete job take-up decisions, benefit entitlement, wage-indexed benefits, and heterogeneous job types, I demonstrate that the policy can increase an unemployed worker's willingness to work, even though more benefits in general reduce the relative value of employment. In a calibrated quantitative model, I find that allowing delayed benefit collection increases ...