This paper studies the impact of international business trips on the stock of knowledge available to an economy. It develops a theoretical model to analyse the possible effects, and presents an empirical application using productivity data for a panel of twelve Australian industries during...

Internation comparisons of average national incomes omit important information about leisure, home production, health, etc. They are also bedevilled by index number problems. This paper suggests ways of combining working hours and life-expectancy with income comparisons, and shows that the...