Noting that economic decision making in the United States is highly centralized among a select socio-economic elite who control big business, he argues that this elite play a dominant role in this Imperial Grand Strategy because they consistently maintain a strong influence over successive U.S. governments. As a result, he argues that U.S. foreign policy has focused on gaining and maintaining unrestricted access to markets, energy supplies, and strategic resources across the world.[22] Chomsky goes on to categorize the specific purposes of the doctrine as: