Final answer:
The economic policy change under Ronald Reagan was that wealthy individuals received tax cuts, hoping to stimulate investment and reduce unemployment through supply-side economics.
Step-by-step explanation:
The economic policy change resulting from the election of Ronald Reagan was that people making more than a certain amount received tax cuts. This policy was part of a broader economic plan known as Reaganomics, which also included measures such as raising interest rates to curb inflation, cutting federal spending on social programs, and deregulating industry. Reagan's approach was based on supply-side economics, with the idea that tax cuts for the wealthy would lead to investment in businesses and thus reduce unemployment.