1. What are the contributions in this paper?
The authors also consider the endogenous formation of political jurisdictions and they highlight several open issues in need of further research.
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2. What is the reason for the lower propensity to trust of resettled villagers?
From the results of her trust game, Barr concludes that the lower propensity to trust of resettled villagers is due not to differences in altruism or in socially transmitted norms, but to the lower density of kinship ties.
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3. What is the expected sign of the interaction between fractionalization and GDP?
In all four regressions the interaction of initial GDP per capita and fractionalization has the expected (positive) sign, suggesting that indeed fractionalization has more negative effects at lower levels of income.
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4. What is the expected sign of the interaction with the Gastil index?
Note the index is a decreasing measure of democracy so the expected sign on the interaction with the fractionalization is negative.
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