2. The economy of Erehwon has grown 3% per year over the past 30 years. The labor...

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2. The economy of Erehwon has grown 3% per year over the past 30 years. The labor force has grown at 1% per year, and the quantity of physical capital has grown at 4% per year. The average education level hasn’t changed. Estimates by economists say that each 1%

increase in physical capital per worker, other things equal, raises productivity by 0.3%.

a. How fast has productivity in Erehwon grown?

b. How fast has physical capital per worker grown?

c. How much has growing physical capital per worker contributed to productivity growth? What percentage of total productivity growth is that?

d. How much has technological progress contributed to productivity growth? What percentage of total productivity growth is that?

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Macroeconomics In Modules

ISBN: 978-1464139055

3rd Edition

Authors: Paul Krugman ,Robin Wells

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