Arrow up or down: An increase in the wage for high-school graduates...............the opportunity cost of college. Fill

Question:

Arrow up or down: An increase in the wage for high-school graduates...............the of college. Fill in the blank for the given statement.
Opportunity Cost
Opportunity cost is the profit lost when one alternative is selected over another. The Opportunity Cost refers to the expected returns from the second best alternative use of resources that are foregone due to the scarcity of resources such as land,...