In 2000 commentators everywhere were hailing the boom in some western economies as the dawn of a new economy. In 2001, with a slowdown biting in the US economy, dot.coms folding and information and communications technology firms feeling the pinch globally, the headline writers have swung the...

What is driving recent growth in OECD countries? Why is it that their levels of GDP per capita are no longer converging? Why is it that some countries, operating at the technological frontier, where advances are difficult, appear to be widening the gap? Whether or not it is appropriate to speak...