In this article, we study the welfare effects of unfunded social security in a general equilibrium model populated with overlapping generations of altruistic individuals that differ in lifetime expectancy and earnings ability. Contrary to previous research, our results indicate that steady-state...

In this paper we study the welfare effects of eliminating social security in a model with two sided altruism where social security provides insurance against lifetime and individual income uncertainty. Our findings indicate that households are able to shift the efficiency gains, generated...

In this paper we evaluate the impact of social security on capital accumulation and welfare in an environment with differential lifespan uncertainty and age-efficiency profiles induced by a generational `ability shock'. We construct a general equilibrium model populated with overlapping...

Much of the existing literature on social security has taken the extreme assumption that individuals have little or no altruism; this paper takes an opposite assumption that there is full two-sided altruism. When households insure members that belong to the same family line, privatizing social...

We compute the welfare effects of different revenue-neutral tax reforms that eliminate capital income taxation in two general equilibrium models calibrated to the U.S. economy. In our dynastic model, the reform with the largest welfare gain is the one that eliminates all income taxation and...

Our results indicate that despite the large demographics changes that took place, medium term fluctuations in hours worked are hardly impacted by them.

We use balance sheet and National Income and Products Accounts (NIPA) data to calibrate factor shares in a model with three factors (land, labor, and capital) and three sectors (business, household, and government). These estimates are used in an overlapping generations model with land to study...