MICROECONOMICS-ACCESS CARD <CUSTOM>
MICROECONOMICS-ACCESS CARD <CUSTOM>
11th Edition
ISBN: 9781266285097
Author: Colander
Publisher: MCG CUSTOM
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Chapter 3, Problem 1QE
To determine

The central coordinating mechanism in a market economy.

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A market economy is a system in which decisions related to the economy and the pricing of products and services are directed by the exchanges that take place between country’s citizens and businesses. The central coordinating mechanism in a market economy is the price mechanism. The price mechanism is the system where the demand and supply forces determine the prices of goods and services. In a market economy, the buyer’s demand and the seller’s supply meet at a point, where the price that the buyer is willing to pay is equal to the price seller is willing to get for a particular quantity of the product. Thus, this mechanism centrally coordinates the market and hence helps to decide the quantity that needs to be supplied in the market. Hence, price mechanism is a central coordinating mechanism in a market economy.

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CEO Salary and Firm SalesWe can estimate a constant elasticity model relating CEO salary to firm sales. The data set is the same one used in Example 2.3, except we now relate salary to sales. Let sales be annual firm sales, measured in millions of dollars. A constant elasticity model is[2.45]ßßlog (salary) = ß0 + ß0log (sales) + u,where ß1 is the elasticity of salary with respect to sales. This model falls under the simple regression model by defining the dependent variable to be y = log(salary) and the independent variable to be x = log1sales2. Estimating this equation by OLS gives[2.46]log (salary)^=4.822 + 0.257 (sales)             n = 209, R2 = 0.211.The coefficient of log(sales) is the estimated elasticity of salary with respect to sales. It implies that a 1% increase in firm sales increases CEO salary by about 0.257%—the usual interpretation of an elasticity.
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