How did world war ll affect the economy?

World War II significantly transformed global economies by driving massive government spending and industrial production, leading to full employment in many countries. The war effort stimulated technological advancements and infrastructure improvements, which laid the groundwork for post-war economic booms. Additionally, the conflict shifted economic power dynamics, with the United States emerging as a dominant global economic leader, while many European economies required extensive rebuilding. Overall, WWII catalyzed changes that reshaped international trade and economic relations for decades to come.