That's a false narrative your side hopes to perpetuate by repeating it over and over, but these are the facts according to accepted world history:
"During this time (1945-1970) there was high worldwide economic growth; Western European and East Asian countries in particular experienced unusually high and sustained growth, together with full employment.
Contrary to early predictions, this high growth also included many countries that had been devastated by the war, such as Greece (Greek economic miracle), West Germany (Wirtschaftswunder), France (Trente Glorieuses), Japan (Japanese post-war economic miracle), and Italy (Italian economic miracle).
Causes
Productivity: High productivity growth from before the war continued after the war and until the early 1970s. Manufacturing was aided by automation technologies such as feedback controllers, which appeared in the late 1930s were a fast-growing area of investment following the war. Wholesale and retail trade benefited from the new highway systems, distribution warehouses and material handling equipment such as forklifts. Oil displaced coal in many applications, particularly in locomotives and ships.
In agriculture, the post WW II period saw the widespread introduction of the following:
- Chemical fertilizers
- Tractors
- Combine harvesters
- High yield crop varieties of the Green revolution
- Pesticides
- New products and services
- Industries that were created or greatly expanded during the post war period included television and commercial aviation.
Keynesian economics
Allied war bonds matured during these years, transferring cash from governments to private households.
The national debt of the United Kingdom was at a record high percentage of the GDP as the war ended, but was largely repaid by 1975.
Keynesian economists argue that the boom was caused by the adoption of Keynesian economic policies, particularly government spending ("fiscal stimulus").
Journalist Naomi Klein has argued the high growth enjoyed by Europe and America was delivered by Keynesian economic policies, and in the case of rapidly rising prosperity the golden age saw in parts of South America by the influence of developmentalist economics led by Raúl Prebisch.
This period also saw financial repression—low nominal interest rates and low or negative real interest rates (nominal rates lower than inflation plus taxation), via government policy—resulting respectively in debt servicing costs being low (low nominal rates) and in liquidation of existing debt (via inflation and taxation). This allowed countries (such as the US and UK) to both deal with their existing government debt level and reduce the level of debt without needing to direct a high portion of government spending to debt service.
Burton and Anita Folsom
Historical federal marginal tax rates for income for the lowest and highest income earners in the US.
In Burton Folsoms and Anita Folsoms book FDR goes to War, the Folsoms argue that Keynesian post-war plans were thwarted by the sudden death of President Roosevelt, the inexperience of the new president Harry Truman, and conservative control of Congress. When World War II ended Congress ended economic controls that were enacted prior to and during the Second World War (war economy) and cut tax rates. Folsoms argue that these ″libertarian policies″ made the economy grow faster in 1946 and 1947 than government experts had expected and stabilized unemployment at 3.9%.
Immediate post-war policy
Among the causes can be mentioned the rapid normalization of political relations between former Axis powers and the western Allies. After the war, the major powers were determined not to repeat the mistakes of the Great Depression, some of which were ascribed to post–World War I policy errors. The Marshall Plan for the rebuilding of Europe is most credited for reconciliation, though the immediate post-war situation was more complicated.
In 1948 the Marshall Plan pumped over $12 billion to rebuild and modernize Western Europe. The Coal and Steel Community formed the foundation of what was to become the European Union in later years.
Institutional factors
Institutional economists point to the international institutions established in the post-war period. Structurally, the victorious Allies established the Bretton Woods system, setting up international institutions designed to ensure stability in the world economy. This was achieved through a number of factors, including promoting free trade, instituting the Marshall Plan, and the use of Keynesian economics.
US Council of Economic Advisers
In the United States, Congress set the goal of achieving full employment as well as structuring, full production, and stable prices in the Employment Act of 1946. It also created the Council of Economic Advisers to provide objective economic analysis and advice on the development and implementation of a wide range of domestic and international economic policy issues. In its first 7 years the CEA made five technical advances in policy making:
- The replacement of a "cyclical model" of the economy by a "growth model,"
- The setting of quantitative targets for the economy,
- Use of the theories of fiscal drag and full-employment budget,
- Recognition of the need for greater flexibility in taxation, and
- Replacement of the notion of unemployment as a structural problem by a realization of a low aggregate demand.
In 1949 a dispute broke out between chairman Edwin Nourse and member Leon Keyserling. Nourse believed a choice had to be made between "guns or butter" but Keyserling argued that an expanding economy permitted large defense expenditures without sacrificing an increased standard of living. In 1949 Keyserling gained support from powerful Truman advisers Dean Acheson and Clark Clifford. Nourse resigned as chairman, warning about the dangers of budget deficits and increased funding of "wasteful" defense costs. Keyserling succeeded to the chairmanship and influenced Truman's Fair Deal proposals and the economic sections of National Security Council Resolution 68 that, in April 1950, asserted that the larger armed forces America needed would not affect living standards or risk the "transformation of the free character of our economy."
During the 1953–54 recession, the CEA, headed by Arthur Burns deployed traditional Republican rhetoric. However it supported an activist contracyclical approach that helped to establish Keynesianism as a bipartisan economic policy for the nation.
Military spending
Another explanation for this period is the theory of the permanent war economy which suggests that the large spending on the military helped stabilize the global economy; this has also been referred to as "Military Keynesianism"."
http://en.wikipedia.org/wiki/Post–World_War_II_economic_expansion
So, sorry to disappoint you, but you're spouting bullshit unsubstantiated by historical context
