Due to taxes and subsidies, gasoline prices vary dramatically across countries. Externalities cannot fully account for this. We develop a simple political economic model that shows that group interests, resulting from the composition of a country's car fleet, help to explain differences in...

Market-based instruments are believed to create more efficient incentives for firmsto adopt new technologies than command-and-control policies. We compare the effects of a directtechnology regulation and of an adoption subsidy under asymmetric information about the costsof technological advances...

IPCC (2022) documents a looming gap between climate goals and implemented policies and points to a lack of political commitment. We study policymakers' incentives to commit. A policymaker decides on a policy to encourage citizens to make investments and determines the degree of flexibility to...

Several economists have directed our attention to a finding in the social psychological literature that extrinsic motivation may undermine intrinsic motivation. The self-perception (SP) theory developed by Bem (1972) explains this finding. The crux of this theory is that people remember their...