A key assumption of the Solow Growth Model is that:   (a) the marginal product of capital diminishes as additional units of capital are added;   (b) output per capita declines as a nation’s capital to labor ratio increases;   (c) the marginal product of labor tends to rise as additional units of labor are added;   (d) capital tends to depreciate at an increasing rate as a nation’s output increases.

Consider a standard Solow growth model. Denote capital stock as K, population as N, capital depreciation rate as d, saving rate as s, output as Y. Output is produced by a representative firm according to the production function Y=zF(K, N), where z is current total factor productivity. The law motion for capital is K' = (1 - d)K + I, where K' is the future capital stock. Population grows at a constant rate n, that is N' = (1 + n)N, and household supply labor inelastically, so population equals labor force. (a) In a graph, show the steady state level of capital per worker. Use lower case letters to denote per-capita terms and use * to denote steady state.(b) Suppose a country is initially at a steady state, then a war destroyed some of its capital stock. Determine the long run effects on the quantity of capital per worker and on output per worker in the steady state. Show by a graph. (C)Define golden rule saving rate. What does it maximize? Determine the effects of a decrease in the…

Consider a numerical example using the Solow Growth Model, for 2 countries. Country A: d=0.1, s=0.3, n=0.01, z=1, F(K,L)=K0.3n0.7 Country B: d=0.1, s=0.2, n=0.01, z=1.5, F(K,L)=K0.4N0.6 Which Country has a higher level of GDP per capita in steady state? O Country A O Country B Not enough information

Consider the Solow model. Using suitable diagrams, compare the different dynamics for the levels and growth rates of capital per capita and output per capita following: (a) a new wave of immigration, (b) an increase in the saving rate, (c) a one-shot foreign investment which increase the size of the available stock of capital, (d) an important technological advance.