We estimate the causal effects of ambient temperature on outdoor productivity, using the performance data of professional soccer players in the Chinese Super League (CSL) from 2014-2018. We exploit exogenous variation in the players’ exposure to temperature by matching it with hourly stadium...

This study is the first to investigate the superstar effect on professional men's tennis players' situational performance, employing novel serve and return ratings. We innovate by examining the impact of superstars on the performance of both higher-ranked (HR) and lower-ranked (LR) players. We...

Conventional pension systems suffer from a design defect which makes them financially unsustainable, and a source of inefficiency for the economy as a whole. The paper outlines a second-best policy which includes a public pension system made up of two parallel schemes, a Bismarckian one allowing...

So-called activation policies aiming at bringing jobless people into work have been a central component of welfare reforms across OECD countries during the last decades. Such policies combine restrictive and enabling programs, but their characteristic feature is that also enabling programs are...