1. Income and substitution effects Kevin and Maria Rossi live in Houston and enjoy going out to fancy restaurants for dinner and to coffee shops for breakfast. On the following graph, the purple curves U and U represent two of their indifference curves for dinners and breakfasts. They have $400 per month available to spend on eating out. The price of a breakfast is always $5. Each labeled point represents the tangency between a budget constraint and the corresponding indifference curve. BREAKFASTS B 72 50 89 U U BC 2 H BC 0 0 34 6 DINNERS (?)