Conversation so far:
who proposed the european recovery program and what was its purpose
The European Recovery Program, was a U.S. program providing aid to Western Europe. It was the brainchild of U.S. Secretary of State George C. Marshall, for whom it was named.
who was president when the european recovery program was enacted
President Harry S. Truman signed the Economic Assistance Act, which created a program that would help Europe recover and rebuild after the devastation wrought by World War II.

Question: what were the effects
Self-contained rewrite: what were the effects of the marshall plan