a. An economist calculates that the price elasticity of demand for potatoes in ireland was 0.70 in 1980. To do her analysis, she uses consumer expenditure datea denominated in Irish pounds. If she had converted these data to American dollars at the 1980 exchange rate (1 Irish pound = $2), what would the price elasticity of demand have been?

b. The weekly demand for sock puppets at the It's-A-Toy website is Q=20-2P. Compute the point price elasticity of demand when P=6.

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