Climate change can be addressed by mitigation and adaptation approaches at the national policy level. Since only limited resources are available for both strategies, it is key to unravel how ongoing climate developments and their communication influence the population's preferences regarding the...

In this paper we investigate the influence of financial incentives on agents' commitment success who use a self-bet mechanism to overcome their self-control problems. We use results from the theoretical model developed in Hirt-Schierbaum and Ivets (2020) that allows for heuristic bias in agents'...

When properly implemented, Randomized Controlled Trials (RCT) can achieve a high degree of internal validity. Yet, if an RCT is to inform policy interventions that extend beyond the experimental population, it is critical to establish external validity. In this paper, we first present a...

We conduct a framed field experiment in Indonesian fishing communities, with an eye towards evaluating the potential of Territorial Use Rights for Fisheries (TURFs) to preserve coral reef fisheries. Conducted in three culturally distinctive sites, the study assembles groups of five fishers who...

This paper presents the findings of two Randomized Controlled Trials (RCTs) that were conducted in collaboration with the Australian Taxation Office (ATO). The first trial tests the effect of changes to letters (timing, social norms, color, and provision of information about charitable...

In 2008, Uganda granted hundreds of small groups $400/person to help members start individual skilled trades. Four years on, an experimental evaluation found grants raised earnings by 38% (Blattman, Fiala, Martinez 2014). We return after 9 years to find these start-up grants raised earnings and...

This paper examines weight loss and the formation of healthy habits through cash rewards in the context of a multi-phase randomized controlled trial involving 700 obese individuals. We find effects of monetary incentives for weight loss of up to EUR 300 on body weight during all experimental...

This paper provides theoretical and empirical evidence on the implications of the timing of reminders by studying the effect of varying the timing of reminder letters to taxpayers on their payment behavior. The collection of unpaid tax debts constitutes a considerable challenge for tax...

Massive Open Online Courses are a promising educational innovation. Yet, they suffer from high drop-out rates. As a remedy, we propose a planning prompt and test its effect on course completion and further outcomes such as course engagement and satisfaction in four large-scale randomized...

We document an increase in the scoring probability from penalties in soccer, which separates the time period before 1974 significantly from that after 1976: the scoring probability increased by 11%.We explain this finding by arguing that the institution of penalty-shooting before 1974 is best...