We ask what level of migration would maximize world welfare. We find that skill-neutral policies are never optimal. An … countries. For intermediate welfare functions that moderately favor the rich however, it is optimal to have no migration at all …

mediated through employee decision-making and effort. To the extent that these practices are complementary with workers' skills …

skills in the labor force can play a role in the determination of trade flows. We develop a multi-country, multi-sector model …' skills, (ii) the dispersion of skills in the working population. First, we show how higher dispersion in human capital can … trigger specialization in sectors characterized by higher substitutability among workers' skills. We then use industry …

, population, income growth and distribution, and migration trends are endogenous. We derive new insights about the impact of … migration on long-term income growth and distribution, and the net benefits to natives in both destination and source countries …

Recent theoretical and empirical studies have emphasized the fact that the prospect of international migration … increases the expected returns to skills in poor countries, linking the possibility of migrating (brain drain) with incentives … that temporary migration is widespread among highly skilled migrants (such as Eastern Europeans in Western Europe and …

, remittances, return migration, or an emigration 'lottery'. Instead, they are driven purely by the public nature of knowledge goods …