The mobility of the tax base may influence fiscal outcomes. The many theoretical contributions about the role of mobility are not matched by empirical evidence. Existing studies address strategic interaction between governments, but have little to say about mobility. We introduce a new measure...

The analysis of the effect of tariffs for labor productivity faces the challenge of tariff policy endogeneity. Tariff policy is designed to promote economic development and the industrial sector tariff structure may reflect characteristics of the industries protected. We seek to identify the...

The barrier model of productivity growth suggests that individual country productivity is related to the world technology frontier disturbed by national barriers. We offer a country study of the barrier model exploiting the dramatic changes in the linkages to the world economy in South Africa....

The paper integrates two mechanisms of economic growth, barriers to international spillovers and skill - biased effects on the income distribution. South Africa is an interestin g case study because of dramatic changes in international barriers over time and policy focus to productivity and...