If a production possibilities frontier is bowed outward, then it means Group of answer choices opportunity costs are increasing. resources are equally suited to producing either good. opportunity costs are constant. the economy is not using its resources efficiently. Flag question: Question 11 Question 112 pts If the price of coffee decreases, the substitution effect due to the price change will cause Group of answer choices an increase in the demand for soda, a substitute for coffee. an increase in the quantity of coffee demanded. an increase in the demand for coffee. a decrease in the demand for creamer, a complement for coffee. Flag question: Question 12 Question 122 pts If the price of milk increases, then it causes Group of answer choices an increase in quantity demanded of milk. a decrease in quantity demanded of milk. an increase in demand for milk. a decrease in demand for milk