4- A noncompetitive firm with the production function Q=0.5-√ī faces the following demand function for its product P = 7800 - 350 The firm pays a wage of $40 per unit and has $500 of fixed cost. a) What is the firm's profit maximizing level of output, price, and labor utilization? b) What is the firm's profit or loss?
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- A firm has a linear demand function for its product. When the price of the product isSh.220, the quantity demanded is 40 units. When the price increases to Sh.240, thequantity demanded becomes 30 units. In addition, the firm’s marginal cost function isgiven by:MC = 40q – 2q2 + 2Fixed cost = Sh.5 millionWhere q = quantity demanded, MC = marginal cost (Sh. million)Evaluate the level of output that maximizes profits.2. A firm has the following Cobb-Douglas production function: q = LªK!-a, where 0 < a <1 is a parameter. Suppose that in the short run K = 1. The rental rate of a unit of K is $10, and the wage rate of a unit of L is $20. (a) Derive the marginal cost of the firm (expressed in terms of a and q). (b) Derive the average variable cost of the firm (expressed in terms of a and q). (c) Derive the cost function of the firm.For a firm with a Total Cost function TC C(Q), recall that the definitions of Marginal Cost (MC) and AverageTotal Cost (ATC) are given as follows:Marginal Cost (MC) = C'(0)Average Total Cost (ATC) = C(Q)/QProve that the marginal cost is equal to the average total cost (MC = ATC) when the average total cost is at itsminimum value.(Hint: By using the definition of average cost function, find the quantity that minimizes it by applying unconstraint optimization.Show that the FOC of the minimization problem implies that MC=ATC has to be satisfied at the minimum level of average cost.)
- 1 A smartphone repair firm in Boston has a production function for producing phone repairs, q, defined as, — 4 -L1/2K 1/2, where L is labor measured in hours worked, and K is the number of useful tools used in the repair process. The market wage for a phone repairperson, w, is $25 per hour. The tools could be sold at a secondhand market for $4 (r). Find the (variable) cost function:. Submit your answers as a single PDF. Please try and keep solutions tidy.1. A firm’s production function is , where Ldenotes the size of the workforce. Find the value of MPLin the case when: (a) L=1, (b) L=10, (c) L=100, (d) L=1000 Does the law of diminishing marginal productivity apply to this particular function? 2. Show that the price elasticity of demand is constant for demand functions of the form where A and n are positive constants. 3. The demand and total cost functions of a good arerespectively and a) Find expressions for TR, (profit) , MR, and MC in terms of Q. b) Solve the equation and hence determine the value of Q which maximizes profit. c) Verify that, at the point of maximum profit, MR=MC. 4. The cost of building an office complex, x floors high, in a prime location in Accra is made up of three components: (a) GH¢10 million for the land (b) GH¢1/4 million per floor (c) Specialized costs of GH¢10000x per floor. How many floors should the office complex contain if the average cost per floor is to be minimized? 5. The supply…1. Suppose that the production function for a firm is given by the CES function q = f (z1, z2) = (z + z)/Y. Where z1 and z2 are the two inputs used by the firm. The inputs prices are respectively wi and w2 a. Set up the cost minimizing problem of the firm and derive the first order conditions for cost minimization b. Derive the conditional inputs demand functions for inputs 1 and 2 c. Derive the associated cost function for the firm
- 6. Each of the 10 firms has the production function q = √KL. The wage is 5 and the rent on capital is 10. Assume we are in the long run, so firms can vary both factors. Write an expression for one firm's cost minimization problem. Use whichever method you prefer to minimize cost and derive an expression for one firm's total cost: TC (9₁) c. Compute one firm's marginal cost and derive the inverse supply curve for one firm and the inverse supply curve for the market. What is the elasticity of supply? a. b.14. The research department of Acme, Inc. has determined the marginal cost function for one particular item to be m(x) = 0.12e0.04x dollars per item, where x is the number of items produced. If Acme's fixed costs amount to $3,000, find the cost function, C(x), for the company.If the demand function for math self-help videos is given by 45 -0.4x, and the total cost function to manufacture the videos is given by 4x + 17, evaluate the marginal profit function at x = 10. Marginal Profit = This means that if production and sales increase by one unit, then total profit will O increase decrease by approximately dollars.
- 2. Suppose the hourly wage is $10 and the price of each unit of capital is $25. The price of output is constant at $50 per unit. The production function is f(E, K) = E'/²K'/2. (a) Write a firm's short-run profit maximization problem. (b) Find a firm's marginal product of labor MP(E). (c) Find the second order condition and derive the labor demand function (i.e. An increase in wage decreases the number of workers hired). (d) If the current capital is fixed at 1,600 units, how much labor should the firm employ in the short run? (e) How much profit will the firm earn?2. A firm producing hockey sticks has a production function given by: q = 2 vkl In the short run, the firm's amount of capital equipment is fixed at k = 100. The rental rate for k is v=$1, and the wage rate for / is w=$4. (a) Calculate the firm's short-run total cost curve. Calculate the short-run average cost curve. (b) What is the firm's short-run marginal cost function? What are the SC, SAC, and SMC for the firm if it produces 25, 50, 100 and 200 hockey sticks? (c) Where does the SMC curve intersect the SAC curve? Explain why the SMC curve will always intersect the SAC curve at its lowest point.12. If the demand function for a product is p = 100 – 2x where is price in dollars and x is the number of units sold, and the average cost function for a product is C(x) = 100 +4 where x is the number of units sold and C is dollars per unit, what is the maximum profit? Answer and Work Explanation of Work