We show that geographical factors influence long-run per capita income directly, as well as indirectly, through the quality of institutions. The direct influence of geography on per capita incomes is robust to the inclusion of a sub-Saharan Africa dummy and other tests. We obtain our results by...

How much does the antiquity of states, and the sometimes arbitrary nature of colonial boundaries, explain why some states are more susceptible to civil conflict than others? Older states and those with greater historical legitimacy (more continuity between the pre-colonial and post-colonial...

Growth rates of per capita GDP are depressed by civil conflict to a degree that reflects its severity. Only the more severe conflicts – ones that affect at least half of the country by land area and/or cause more than 1,000 fatalities in at least one year – have a significant negative growth...

We use new data on the timing of the transition to agriculture, developed by Putterman and Trainor (2006), to test the theory of Diamond (1997) and Olsson and Hibbs (2005) that an earlier transition is reflected in higher incomes today. Our results confirm the theory, even after controlling for...

Growth rates of per capita GDP are depressed by civil conflict to a degree that reflects its severity. Only the more severe conflicts - ones that affect at least half of the country by land area and/or cause more than 1,000 fatalities in at least one year - have a significant negative growth...

We decisively reject the hypothesis that geographical factors influence long-run only indirectly, through the quality of institutions. The direct influence of geography on per capita incomes is robust to the inclusion of a sub-Saharan Africa dummy and other tests. We obtain our results by...

We investigate the determinants of onset, duration and incidence of civil wars, and their sensitivity to different coding rules. Whatever the coding rule used, incidence of civil war is largely determined by poverty, country size, mountainous terrain and ethnic diversity. Poverty reduces the...

We use new data on the timing of the transition to agriculture, developed by Putterman and Trainor (2006), to test the theory of Diamond (1997) and Olsson and Hibbs (2005) that an earlier transition is reflected in higher incomes today. Our results confirm the theory, even after controlling for...

We hypothesise that, given the typically uneven distribution of ethnic groups within a country, ethnic diversity leads to greater local polarization and more frequent, but smaller, conflicts that involve only some ethnic groups. These conflicts can be overlooked if the number of fatalities is...

We use new data on the timing of the transition to agriculture, developed by Putterman and Trainor (2006), to test the theory of Diamond (1997) and Olsson and Hibbs (2005) that an earlier transition is reflected in higher incomes today. Our results confirm the theory, even after controlling for...