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th rates of capital and labor. Macroeconomics Chapter 3 29 Solow Growth Model ? From the per worker production function ? ?y/y = ?Y/Y ? ?L/L ? ?k/k = ?K/K ? ?L/L Macroeconomics Chapter 3 30 Solow Growth Model ? ?Y/Y= α population ? Laborforce participation rate ? Assume labor force participation rate is constant. ? Labor force growth rate is the population growth rate Macroeconomics Chapter 3 26 Solow Growth Model ? Growth rate in population ? We assume that population grows at a constant rate, denoted by n, where n is a positive number (n 0). ? ?L/L = n Macroeconomics Chapter 3 27 Solow Growth Model Macroeconomics Chapter 3 28 Solow Growth Model ? Assume ?A/A = 0 ??Y/Y= α(?K/K) + β(?K/K), and labor, β(?K/K) + β F(K/L, L/L) Macroeconomics Chapter 3 19 Per Worker Production Function ? y=f(k) ? y ? output per worker ? k ? capital per worker Macroeconomics Chapter 3 20 Macroeconomics Chapter 3 21 An example: CobbDouglas Production Function YKM P KKYKLAKLAKdKdYM P KAkLAKLLAKyLKkLYyLAKY///11111???????????????????????????????????Macroeconomics Chapter 3 22 Contributions to GDP Growth Y = AMacroeconomics Chapter 3 1 Introduction to