In this episode of the Podcast of Ideas, Rob Lyons talks to economics journalist and author Daniel Ben-Ami about what tax has become one of the biggest issues in British politics and Rob Killick about whether Uber and AirBnB represent the first shoots of a new economy. Plus, Claire Fox explains why state-regulation of what appears on a cigarette pack is a free-speech issue and Institute of Ideas staff select their stories of the past two weeks.