• Tariffs still matter. • Full tariff liberalisation to 2010 would generate dynamic welfare gains of $1 200 billion (at 1995 prices), equivalent to 3 per cent of World GDP in 2010, from greater efficiency and higher productivity. • Developing countries stand to gain relatively more from...

It might seem obvious discovering an asset such as oil or copper would be wonderful news for the country making the find. Yet the opposite is often true. The windfall can bring poverty, civil strife, corruption, inequality, slower growth and undemocratic practices. The phenomenon is known as the...