We develop and estimate a life-cycle consumption savings model in which observed genetic variation is allowed to affect wealth accumulation through several distinct channels. We focus on genetic markers that predict educational attainment, aggregated into a predictive index called a polygenic...

Budget set kinks are much studied in economics, including in the context of "bunching" estimators that assume individuals react to the true marginal tax rate. We document that individuals disproportionately "left-bunch" below kinks in the context of the Social Security Earnings Test where...

This study examines how elderly employment is associated with social security programs and how it responds to recent reforms in Japan. To this end, we employed a rich and longitudinal dataset of middle-aged and older individuals collected between 2005 and 2018. By incorporating various factors...

The safety nets in high-income countries before 1900 and in low-income countries today were based on savings and aid from extended family, friends, charities, churches, and small amounts from local governments. Mutual societies and eventually insurance companies offered insurance against lost...

The over-60 population in Sub-Saharan Africa is expected to grow rapidly in the coming decades, tripling between 2020 and 2050. Despite this explosive projected growth, few countries in the region have implemented policies designed to support older populations. Further, little research in...

As the U.S. population ages, the growing retiree-worker ratio increases the burden of public retirement systems. Is it efficient to maintain a defined benefit social security system? Should PAYGO benefits be reduced and private retirement savings be encouraged? The paper examines these questions...

Implicit government obligations represent the lion's share of government liabilities in the U.S. and many other countries. Yet these liabilities are rarely measured, let alone properly adjusted for their risk. This paper shows, by example, how modern asset pricing can be used to value implicit...

The worldwide problem with pay-as-you-go (PAYG) social security systems isn't just financial. This study indicates that these systems may have exerted adverse effects on key demographic factors, private savings, and long-term growth rates. Through a comprehensive endogenous-growth model where...

Is there an economic rationale for pronatalist policies? In this paper we propose and analyze a particular market failure that may lead to inefficiently low equilibrium fertility and therefore to a need for government intervention. The friction we investigate is related to the ownership of...

Why are the old politically successful? We build a simple interest group model in which political pressure is time-intensive, showing that in the political competitive equilibrium each group lobbies for government policies that lower their own value of time but that the old do so to a greater...