Problem
The price of food increased during the past year.
a. Explain why the law of demand applies to food just as it does to other goods and services.
b. Explain how the substitution effect influences food purchases when the price of food rises and other things remain the same.
c. Explain how the income effect influences food purchases and provide some examples of the income effect.
The response should include a reference list. Double-space, using Times New Roman 12 pnt font, one-inch margins, and APA style of writing and citations.