In large countries like India and Brazil, differences between regions in wages, incomes, and productivity are an important component of overall inequality. At any point in time, such regional inequality may reflect diversity in terms of natural resources, capital accumulation and production systems, social structures, and urbanisation. However, many of these differences are constructed historically. In other words, they are a part of the growth regime of the country as a whole, the set of economic and social institutions which underlie the pace and pattern of economic growth, and the distribution of its benefits.