7. Models: Apply the supply-and-demand model to the following markets. In each case, state the key endogenous variables in the market as well as some important exogenous variables or parameters. Also, express each model as a system of mathematical equations. As an example, Q = F(P, X) might be the demand curve in the computer market, where X captures some exogenous variables like the availability of the iPad or computer games. How many equations are there within each example? How many unknowns? 1. The computer market. 2. The market for your favorite music. 3. The market for a particular currency, such as the dollar, the yen, or the euro. (Hint: This last example suggests an important point about "exogenous variables": what is exogenous in one model, as in a narrow study of the supply and demand for dollars, may be endogenous in a richer model-like a study of the entire U.S. macroeconomy.)

7. Models: Apply the supply-and-demand model to the following markets. In each case, state the key endogenous variables in the market as well as some important exogenous variables or parameters. Also, express each model as a system of mathematical equations. As an example, Q = F(P, X) might be the demand curve in the computer market, where X captures some exogenous variables like the availability of the iPad or computer games. How many equations are there within each example? How many unknowns? 1. The computer market. 2. The market for your favorite music. 3. The market for a particular currency, such as the dollar, the yen, or the euro. (Hint: This last example suggests an important point about "exogenous variables": what is exogenous in one model, as in a narrow study of the supply and demand for dollars, may be endogenous in a richer model-like a study of the entire U.S. macroeconomy.)

Essentials of Economics (MindTap Course List)

8th Edition

ISBN:9781337091992

Author:N. Gregory Mankiw

Publisher:N. Gregory Mankiw

Chapter2: Thinking Like An Economist

Section: Chapter Questions

Problem 5PA

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