This paper studies an urban growth model where learning through personal contacts could be more effective in a denser locale, whereas the effectiveness of learning through impersonal means of communications depends principally on the technology of communications rather than on the locale in...

This study uses household models based on detailed expenditure and agricultural production data from 31 developing countries to assess the impacts of changes in global food prices on poverty in individual countries and for the world as a whole. The analysis finds that food price increases...