According to Baran and Sweezy, "the larger corporations [have] gradually won more and more independence from both bankers and dominant stockholders, and their policies accordingly [have been] geared to an ever greater extent each to its own interests rather than being subordinated to the interests of a group. We are not of course maintaining that interest groups have disappeared or are no longer of any importance in the United States economy. We do hold that they are of rapidly diminishing importance and that an appropriate model of the economy no longer needs to take account of them." (Monopoly Capital, p. 18)
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