Introduction

Ekob is a company that makes smart thermostats. They can monitor your home's temperature to ensure it stays just the way you like it. iReport: 50 things that made the modern economy with tim harford, molly shull and Natasha daushall. Slop machines are no toy - they've grown like an invasive species in our society. What do slot machines have to teach us about the modern economy? We find out on this week's b b c world service.