Monopoly Capitalism

A stage in the development of capitalism dominated by giant corporations, each of which controls a relatively high proportion of the local or world markets for its products. This means that instead of simple price competition between small independent producers, there is greater importance for finance and investment. Competition between large corporations each with monopoly control in different areas takes the form of competition for finance, for sources of raw materials and for profitable investment opportunities.

From http://web.uct.ac.za/depts/ricsa/projects/publicli/poverty/pov_def.htm