Microeconomics 18th Edition by Campbell McConnell, Stanley Brue, Sean Flynn

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What is the formula for measuring the price elasticity of supply Suppose the price of apples goes up from $20 to $22 a box. In direct response, Goldsboro Farms supplieS₁200 boxes of apples instead of 1000 boxes. Compute the coefficient of price elasticity (midpoints approach) for Goldsboro's supply. It its supply elastic, or is it inelastic