This is the background paper for the productivity extension of the World Bank's Long-Term Growth Model (LTGM). Based on … an extensive literature review, the paper identifies the main determinants of economic productivity as innovation … Penn World Table, and assesses the pattern of productivity growth across regions and income groups over the same sample …

regions, periods, income levels, and growth rates. But relatively little is known about the broad forces that account for the …

regions, periods, income levels, and growth rates. But relatively little is known about the broad forces that account for the … regions, periods, income levels, and growth rates.Dollar and Kraay next ask whether the factors that explain cross …-country differences in the growth rates of average incomes have differential effects on the poorest fifth of society. They find that …

Burnside and Dollar revisit the relationship between aid and growth using a new data set focusing on the 1990s. The … overall measure of institutions and policies popular in the empirical growth literature. The interaction of aid and … institutional quality has a robust positive relationship with growth that is strongest in instrumental variable regressions. There …