In December 2020, Germany implemented a policy restricting online pharmacies from offering rebates on prescription drugs to members of the statutory health insurance. This policy change created a natural experiment, allowing us to analyze its impact on the pharmaceutical market using...

The EU Methane Regulation (MER), effective as of August 4, 2024, introduces new obligations for domestically produced and imported crude oil, natural gas, and coal. While compliance with new import requirements primarily falls on European Union (EU) importers, their ability to meet them hinges...

Hidden “junk” fees have the potential to distort competition, creating high costs to consumers. However, regulating them can lead to adverse effects, especially in complex markets with intermediaries where they are most prevalent. To explore the equilibrium adjustments of regulating hidden...

This study uses a novel dataset from 54 countries and regions to explore how exposure to climate change regulatory shocks influences firms' debt costs. The findings reveal that such exposure generally increases the cost of debt. However, this scenario is reversed for firms that find greater...