Theories of economic growth at the regional and national level, have expanded the traditional production function of the Solow model towards a wide function that collects conditioning factors of labour productivity, measured by R & D expenditure, the number of patents, the human capital, the...

We study the regional income disparities and it's dynamic in South American economies. We use a new historical data base that offers a detailed look at the evolution of national economies, shedding empirical light on income disparities. For this purpose, a system of multiple equations was...