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...

We offer a barrier model of growth with a broader understanding of the sources of productivity growth. Organizational change is suggested as an alternative to innovation and technology adoption. Domestic and international barriers (related to the level of human capital and the trade share)...