(Production function) A technological breakthrough raises a country’s A ̄ by 10%, but capital and labor are all unchanged. Assuming the country’s production function is given by Y = A ̄K1/2L1/2. (a) Figure out what impact this breakthrough will have on the MPK and MPL in that country. (b) Draw a picture Y of against K holding L fixed. 1 (c) Redraw the picture with A ̄ increased to 1.1A ̄ but L fixed at same level as before.
(Production function) A technological breakthrough raises a country’s A ̄ by 10%, but capital and labor are all unchanged. Assuming the country’s production function is given by Y = A ̄K1/2L1/2. (a) Figure out what impact this breakthrough will have on the MPK and MPL in that country. (b) Draw a picture Y of against K holding L fixed. 1 (c) Redraw the picture with A ̄ increased to 1.1A ̄ but L fixed at same level as before.
Chapter1: Making Economics Decisions
Section: Chapter Questions
Problem 1QTC
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(Production function) A technological breakthrough raises a country’s A ̄ by 10%, but capital and labor
are all unchanged. Assuming the country’s production function is given by Y = A ̄K1/2L1/2.
(a) Figure out what impact this breakthrough will have on the MPK and MPL in that country.(b) Draw a picture Y of against K holding L fixed. 1
(c) Redraw the picture with A ̄ increased to 1.1A ̄ but L fixed at same level as before.
(Production function) For the production function Y = K1/3L2/3
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(a) find the function for output per capita
-
(b) What is the growth rate of per capita for this function in terms of the growth rate of K, gK, and
the growth rate of L, n.
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