4. Assume an endogenous growth model with a production function that in per capita terms can be written as y = 0.9k. If the savings rate is s = 0.2, the rate of growth of population is n = 0.03, and the rate of depreciation is d = 0.1, how high is the rate of growth of output per capita? A. 8% B. 18% C. 5% D. 15% E. There is not enough information to calculate it.1. Assume a Cobb-Douglas production function, where the share of capital is 0.4. If capital grows by 1%, labour grows by 1.5%, and output grow 2.7%, by how much does total factor productivity grow? A. 0.2%. B. 1.4 %. C. 1.5 %. D. 2.5 %. E. There is insufficient information to calculate it. 2. The AS curve becomes steeper whenever: A. potential output increases. B. the marginal propensity to consume increases. C. the Phillips Curve coefficient decreases. D. the Okun's coefficient decreases. E. Both A and C. 3. Domestic currency depreciates if: A. there are massive capital inflows. B. more international tourists visit the country. C. there is an increase in imports. D. All of the above. E. None of the above