In: Economics
Consider an economy whose production function is Y = Kθ(AN)1–θ with A = 4K/N. Suppose that it has a savings rate of 0.1, a population growth rate of 0.02, an average depreciation rate of 0.03 and that θ = 0.5. (a) Reduce the production function to the form y = ak. What is a? (b) What are the growth rates of output and capital in this model? (c) Interpret a. What are we really saying when we assume that the labour-augmenting technology, A, is proportional to the level of capital per worker? (d) What makes this an endogenous growth model?