This article relates unweighted inequality between countries to the levels of
the stock of capital per capita between countries. Based on the World-System
analysis, we show that capital accumulation plays a key role in peripheral
countries catching up the leading countries, however, in the World-System
accumulation is a difficult result to achieve to peripheral countries. Using
two databases (The Maddison Project and Penn World Tables), we show
in this article that, through several indexes, between countries inequality
increased from 1950 to 2008 and the minimal increase of the growth rates of
the poor countries. Subsequently, we observed that inequality in the stock
of capital per capita has increased and the scarce increase of the investment
in the poor countries.