This paper addresses estimation of an outcome characterized by mass at zero, significant skewness, and heteroscedasticity. Unlike other approaches suggested recently that require retransformations or arbitrary assumptions about error distributions, our estimation strategy uses sequences of...

This paper addresses estimation of an outcome characterized by mass at zero, significant skewness, and heteroscedasticity. Unlike other approaches suggested recently that require retransformations or arbitrary assumptions about error distributions, our estimation strategy uses sequences of...

We estimate the impact of employer-provided health insurance (EPHI) on the job mobility of males over time using a dynamic empirical model that accounts for unobserved heterogeneity. Previous studies of job-lock reach different conclusions about possible distortions in labor mobility stemming...

There is much debate about whether the Medicare Prescription Drug Bill -- the greatest expansion of Medicare benefits since its creation in 1965 -- will improve the health of elderly Americans, and how much it will cost. We model how insurance affects medical care utilization, and subsequently,...

We model the employment and medical care decisions of older men who face health risk. The budget constraint incorporates detailed characteristics of health insurance as well as Social Security and private pensions. A man whose health insurance is tied to continued employment with his current...

While individual smoking behavior persists over time, it is unknown whether this repeated behavior is due to addiction or individual propensities to smoke. To address this issue, we develop a dynamic empirical model of smoking decisions which explicitly accounts for the impact of previous...