The daily demand function for a product is given by Q = 1,010-2P, where stands for the quantity demanded, and P stands for the price. Part 1 Suppose the market for this product is competitive, and all firms in the market have an identical marginal cost of $55 (and no fixed cost). The consumer surplus in this market equals $ Part 2 ( Suppose instead that this market is served by a single-price monopolist (a monopolist charging a single price) with a marginal cost of $55 (and no fixed cost). The consumer surplus in this market equals $ p

2. Consider the production functions given below: a. Suppose that the production function faced by a bread producer is given by Q = 4KL, where MPK = 4L and MP, = 4K. i. Do both labor and capital display diminishing marginal products in the short run? Explain. ii. Find the marginal rate of technical substitution for this production function. (Hint: The MRTS MPL MPK iii. Does this production function display a diminishing marginal rate of technical substitution? iv. Graph isoquants for Q = 20, and Q = 40. Put capital (K) on the y-axis and labor (L) on the x- axis. Label the isoquants with their quantities. v. What are the returns to scale for this firm? Explain. 20 19 18 17 16 15 14 13 12 11 10 9 0 1 2 3 4 5 6 00 9 10 11 12 13 14 15

Given the demand function D(p) /175 - 3p, Find the Elasticity of Demand at a price of $39 = At this price, we would say the demand is: Elastic Unitary O Inelastic Based on this, to increase revenue we should: Raise Prices Lower Prices Keep Prices Unchanged

Consider a market with the following supply and demand.  (It may help to draw a graph for these questions.) P            5            6            7            8            9            10            11            12           13           14 QS        200       300        400       500        600        700         800          900        1000       1100 QD       800       750        700       650        600        550         500          450         400         350 If there is an external cost of $3, what is the efficient quantity? 500 (already answer) If there is an external benefit of $3, what is the efficient quantity? 700 (already answer) For the remaining questions assume that there is a $3 external COST. If the government wants to get the efficient quantity with a per/unit tax, how much should the tax be? 3 (already answer) Now imagine that they use tradable allowances.  If they cap the quantity at 400 what would the value of these allowance be in the market?  (Assume the…

Consider the following duopoly model and determine profit - maximizing output and price for q_1+ q 2 TC_1 = 10 q_(1) TC_2 = 10 q_2 each firm. P = 200 - Q Industry Demand Q =

Answer the question on the basis of the following marginal utility data for products X and Y. Assume that the prices of X and Y are $4 and $2, respectively, and that the consumer's income is $18. Units of X 1 2 3 4 5 Marginal Utility, X Multiple Choice 20 16 12 8 6 4 4 of X and 5 of Y What quantities of X and Y should be purchased to maximize utility? O 2 of X and 1 of Y O 2 of X and 6 of Y Units of Y 1 2 3 4 5 6 O2 2 of X and 5 of Y Marginal Utility, Y 16 14 12 10 8 6

The difference, (Total Revenue - Total Cost) or [(Unit Price x Quantity Sold) - (Fixed Cost + Variable Cost)], represents, O the break-even point O the profit equation O the sales ratio O the market share O the value equation

The following question is based on the demand and cost data for a pure monopolist given in the table below. Output Price Total Cost 0 $500 $250 12345 300 260 250 290 200 350 150 500 100 680 Refer to the above table. If the monopolist were forced to produce the socially optimal output through the imposition of a ceiling price, the ceiling price would have to be set at: O $100 $150 O $200 $250 www.yout House of High Ant SWEPT his OVER HIM

The profit maximizing condition for a purely competitive firm is when. Price elasticity of demand is positive. Price average total costs O Price - average total costs

You are the principal economist at a firm that produces some output y based on the following function: y = f(x1, x2) = x ³ x ² 1. Calculate the marginal product (MP) of both inputs at some arbitrary input bundle (x₁, x₂). Interpret the sign of both. 2. Using your answer in the previous part, calculate OMPT₂/0x₁. Interpret what this means. 3. Calculate the technical rate of substitution between ₁ and x2, i.e., MP/MP₂. 4. Does this production function exhibit increasing, decreasing, or constant returns to scale? Show. 1 5. Lay out a brief, realistic example of x₁, x2, y that fits the dynamics that you calculated.