The production function is Cobb-Douglas

Show mathematically that the Cobb-Douglas production function exhibits constant returns toscale.Show that when the production function is Cobb-Douglas, output per worker ๐‘ฆ = ๐ด๐‘˜๐›ผ.A country is described by the Solow model, with a production function of ๐‘ฆ = ๐‘˜1/2. Supposethat ๐‘˜ is equal to 900. The fraction of output invested is 30%. The depreciation rate is 2%. Is thecountry at its steady-state level of output per worker, above the steady state, or below thesteady state? Show how you reached your conclusion.(More on next page)In Country 1 the rate of investment is 6%, and in Country 2 it is 18%. The two countries have thesame levels of productivity, ๐ด, and the same rate of depreciation, ๐›ฟ. Assuming that the value of๐›ผ is 1/3, what is the ratio of steady-state output per worker in Country 1 to steady-state outputper worker in Country 2? What would the ratio be if the value of ๐›ผ were 2/3?In a country, output is produced with labor and physical capital. The production function in perworker terms is ๐‘ฆ = ๐‘˜1/2. The depreciation rate is 1%. The investment rate (๐›พ) is determined asfollows:๐›พ = 0.10 ๐‘–๐‘“ ๐‘ฆ โ‰ค 10๐›พ = 0.20 ๐‘–๐‘“ ๐‘ฆ > 10Draw a diagram showing the steady state(s) of this model. Calculate the values of any steadystate levels of ๐‘˜ and ๐‘ฆ. Also, indicate on the diagram and describe briefly in words how thelevels of ๐‘ฆ and ๐‘˜ behave outside of the steady state. Comment briefly on the stability of the steady state(s).

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