Your Production Possibilities Frontier MyEconLab Critical Thinking Exercise Two “goods” that concern you a great deal are your grade point average (GPA) and the amount of time you have available for leisure or earning an income. You face a tradeoff. To get a higher GPA you must give up leisure or income. Your forgone leisure or forgone income is the opportunity cost of a higher GPA. Similarly, to get more leisure or more income, you must accept a lower grade. A lower grade is the opportunity cost of increased leisure or increased income.