We run a large-scale natural field experiment to evaluate alternative strategies to enforce compliance with the law. The experiment varies the text of mailings sent to potential evaders of TV license fees. We find a strong alert effect of mailings, leading to a substantial increase in...

In an auction market, the auctioneer exerts significant influence in choosing and administering a selling strategy. We make the case for viewing the auctioneer as a market maker, whose success depends on how well he manages externalities without jeopardizing the trust of the buyers and sellers....

This paper documents the methodology, content, and evolution of the ifo Human Resources (HR) Survey, a quarterly survey conducted by the ifo Institute since 2008 that targets human resource managers in German firms. While the ifo Institute’s traditional business surveys capture general...

This paper reconsiders how labor market competition shapes skill development - integrating the perspectives of both firms and workers. While existing models often predict that firms will underinvestment in training due to a fear of poaching, we show that competition can instead serve as a...

Workers acquire skills through formal schooling, through training provided by governments, and through training provided by firms. This chapter reviews, synthesizes, and augments the literature on the last of these, which has languished in recent years despite the sizable contribution of firm...

When people choose how to communicate, they must consider whether their audience will be biased in interpreting their messages. This paper experimentally examines how politically-motivated reasoning affects information transmission. Senders are randomly matched with receivers whose political...

Academics are increasingly expected to engage in public discussions. We study how engagement conditions affect academics’ engagement attitudes via a survey experiment among 4,091 tenured professors in Germany. Consistent with the crowding-out of intrinsic motivation, we find lesspositive...

We derive, compare, and test the predictions of three models of gift exchange: Classical (CGE); Augmented (AGE) based on unexpected wage surprises and first order beliefs; and Belief-based (BGE) that uses second order beliefs to formally model guilt-aversion. Motivated by Akerlof (1982), we also...

Empirical research suggests that - rather than improving incentives - exerting control can reduce workers' performance by eroding motivation. The present paper shows that intention-based reciprocity can cause such motivational crowding-out if individuals differ in their propensity for...

We develop a methodology to sign output distortions in the random participation framework. We apply our method to monopoly nonlinear pricing problem, to the regulatory monopoly problem and mainly to the optimal income tax problem. In the latter framework, individuals are heterogeneous across two...