Following the financial crisis and ensuing austerity, politicians discovered the problem of tax avoidance. In response, the OECD and G20 launched the Base Erosion and Profit Shifting (BEPS) project in 2013, and this has in October, 2015 culminated with the release of a series of action steps...

Market efficiency, in its strong form, asserts that asset prices fully reflect all available information. The classical event study methodology attempts to make explicit this link by assuming rigid and universal event periods, in addition to many other restrictions. In contrast, our...