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 third lecture in his series entitled 'Innocence and Design'.

In this lecture entitled 'Needs, Centralism & Autarchy', David Henderson highlights the contrast between Do-It-Yourself Economics (DIYE) and Orthodox Economics. He reflects on how economic policies might affect security, trade, markets and stocks. Using the example of British Nuclear Power, he evaluates how centralism and essentialism can affect situations at a national level.