In a simple model of multiple deposit creation, if the required reserve ratio is 10%, how would an initial injection of $500 in deposits affect the money supply? What would be the affect of a withdrawal of $500 from deposits. Highlight the differences(if any) between these changes.

Suppose an economy has only two sectors: goods and services. each year, goods sells 80% of its outputs to services and keeps the rest, while services sells 62% of its output to goods and retains the rest. find equilibrium prices for the annual outputs of the goods and services sectors that make each sector's income match its expenditures.