EXERCISES 1. Classifying goods. Place the following goods on a chart like that in Figure 4.1-that is, classify them as rivalrous or nonrivalrous and by the extent to which they are excludable: a chicken, the trade secret for Coca-Cola, music from a compact disc, tropical rainforests, clean air, and a lighthouse that guides ships around a rocky coast. 2. Provision of goods. Explain the role of the market and the govern- ment in providing each of the goods in the previous