Die vorliegende Dissertation besteht aus fünf voneinander unabhängigen Papieren, die zwei größeren Forschungsfelder abdecken: die Ökonomie des Alterns und die Innovationsökonomik. Die ersten drei Kapitel betrachten den Einfluss der Interaktion zwischen Generationen auf die Eltern...

This dissertation consists of five distinct empirical papers covering two large areas of research that are rather independent from each other: the economics of ageing and the economics of innovation. The first three chapters cover the impact of intergeneration interaction on the parents of adult...

This paper is the first to use a randomized trial in the US to analyze the short- and long-term impacts of an after-school program that offered disadvantaged high-school youth: mentoring, educational services, and financial rewards to attend program activities, complete high-school and enroll in...

Simple OLS estimates of the effect of school-imposed penalties for drug use on a student's consumption of marijuana are biased if both are determined by unobservable school or individual attributes. The potential reverse causality is also a challenge to retrieving estimates of the causal...

"The NBER Bulletin on Aging and Health provides summaries of publications like this. You can sign up to receive the NBER Bulletin on Aging and Health by email. Over 20 states have adopted laws requiring youths to wear a helmet when riding a bicycle. We confirm previous research indicating that...

Can cash transfers promote employment and reduce poverty in rural Africa? Will lower youth unemployment and poverty reduce the risk of social instability? We experimentally evaluate one of Uganda's largest development programs, which provided thousands of young people nearly unconditional,...