Homework Help: economics

Posted by Imran on Friday, November 2, 2012 at 10:54pm.

Assume that demand for product A can be expressed as QA = 500 每 5PA + 3PB and demand for
product B can be expressed as QB = 300 每 2PB + PA. Currently, market prices and quantities for
these goods are PA, = 5, PB = 2, QA = 481, and QB = 301.

a. Suppose the price of product B increases to 3. What happens to the quantity demanded of
both products?

b. Calculate the arc cross坼elasticity between product A and product B using prices for product
B of 2 and 3.

c. Are these goods substitutes or complements?

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