What is economics?What can - and can''t - it explain about the world? Why does it matter?Ha-Joon Chang teaches economics at Cambridge University, and writes a column for the Guardian. The Observer called his book 23 Things They Don''t Tell You About Capitalism, which was a no.1 bestseller, ''a witty and timely debunking of some of the biggest myths surrounding the global economy.'' He won the Wassily Leontief Prize for advancing the frontiers of economic thought, and is a vocal critic of the failures of our current economic system.