This paper estimates agglomeration benefits based on city productivity differentials across five OECD countries (Germany, Mexico, Spain, United Kingdom, and United States). It highlights the relationship between cities’ governmental fragmentation and productivity, and represents the first...

This paper studies ethnic in-group bias in online trust games played by two large representative samples in the United States and Germany through the Trustlab platform, which was launched by the OECD and several research partners in 2017. The ethnic in-group bias, defined as the propensity to...