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1. (Production function) Condsider a representitive firm with a production function which is (i) twice continuously differentiable; (ii) eahibits positive and diminishing marginal product and (ii) has constant return to scale Y F(K, L) Given the capital rental price R and the wage w, and the good price P is normalized to 1, the firm can choose K and L to maximize its profit: max F(K.L) - RK - wL K.L (a) Denote FK-71, FL = 윙L. Show that the output can be written as (Hint: First notice that if F is constant return to scale, then it is homogeneous of degree 1. Then apply Euler theorem to the production function and findout what is the first order condition of equation (2))Please explain and show all the steps instead of just giving an answer.

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Solution:

Constant returns to scale means output will increase in the same proportion as the increase in inputs.

Soluuthon Y= F(X,L) Shous co ntant returns to scale his meanu outhul wi increase in the same hon as inpi DiHesenhating leth sides with、nduu in inq ewers thaorerm on functon shos constand retuvns to cale, margtna hysical oduct Hence.

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