Final answer:
The GI Bill and the Marshall Plan were two policies that aimed to improve the post-World War II U.S. economy; the former supported veterans, and the latter rebuilt European markets.
Step-by-step explanation:
The two policies aimed to improve the economy in the United States after World War II were the creation of the GI Bill and the Marshall Plan. The GI Bill, officially known as the Servicemen's Readjustment Act of 1944, provided various benefits to veterans including college tuition, unemployment benefits, and low-interest loans. These measures helped to integrate veterans back into civilian life and stimulated economic growth and the expansion of the middle class. On the global stage, the Marshall Plan, or the European Recovery Program, was initiated to rebuild postwar Europe, which in turn revitalized European markets for American goods and prevented potential economic downturns in the U.S. by ensuring a steady demand for its exports.