Ha-Joon Chang

"Between the Great Depression and the 1970s, private business was viewed with suspicion even in most capitalist economies. Businesses were, so the story goes, seen as anti-social agents whose profit-seeking needed to be restrained for other, supposedly loftier, goals, such as justice, social harmony, protection of the weak and even national glory."

"A lot of things that we cannot buy and sell in markets used to be totally legal objects of market exchange - human beings when we had slavery, child labour, human organs, and so on. So there is no economic theory that actually says that you shouldn't have slavery or child labour because all these are political, ethical judgments."

"By liberating women from household work and helping to abolish professions such as domestic service, the washing machine and other household goods completely revolutionised the structure of society."

"Economics should be defined in terms of what it is about. It should be about how people produce things, how people exchange them, how people earn income, how they pay taxes, how the government provides infrastructure with tax revenue, and how it conducts monetary policy. The subject has to be defined in terms of the object of inquiry."

"Charities are now working to give people in poor countries access to the Internet. But shouldn't we spend that money on providing health clinics and safe water? Aren't these things more relevant? I have no intention of downplaying the importance of the Internet, but its impact has been exaggerated."

"The invention of the printing press was one of the most important events in human history."