In the July 2013 Taxcast: We analyse the OECD's Action Plan it says is going to tackle corporate tax cheating. And who needs the OECD, the G20 or the G8 anyway? The Taxcast looks at alternative working models governments could implement NOW without any more summits: Japan introduced its Tax Haven Counter Measure Law in the 1970s and Mexico has a tax haven black list and the Dictamen Fiscal rule to help it hold multinational corporations to account.