David Henderson, Head of the Economics and Statistics Department at the Organisation for Economic Co-operation and Development (OECD), examines the influence of economic ideas on policy. He gives the first of five lectures in his series entitled 'Innocence and Design'.

In this lecture entitled 'The Power of Do-It-Yourself Economics', David Henderson explores the phenomenon of economic DIY. Explained as the unprofessional or layman's view of finances, he describes how it can contradict with the professional views of economics. Using his own experience as a British civil servant, he questions both economic ideals.