why is the end of the cold war tied to the american domestic economy during this time?

Hope this helps In the uncertain years immediately after the Second World War, U.S. political leaders erected a credit-financed, consumption-led economic framework. It was designed in large part to support job creation and the economic growth of its Cold War allies. The strategy succeeded. The United States and its allies won the Cold War. But the strategy put in place a set of conditions that are now the central challenge of the next U.S. presidency.

The United States became the global consumer of last resort for the export goods of first Germany and Japan — and later all the countries surrounding the USSR and China. The goal of the United States was admirable — to help redevelop the economies destroyed by the war and to keep workers in those countries from being attracted to the promises of communism.