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The monopoly producer of a single good has a constant unit cost c(ω(t)) at time t, where ω(t) is the firm’s “experience” at that date. (Assume c > 0, c < 0, and limt→∞ c(t) > 0.) Time is continuous and runs from zero to infinity. Experience accumulates with production: dω(t)/dt = q(t), where q(t) is production at date t. (Those who have done the empirical work have assumed, as we do, that production exhibits constant instantaneous returns to scale and that the appropriate measure of experience is cumulative output.) Let R(q) denote the revenue function as a function of quantity (supposing demand is invariant). Assume R > 0 and R < 0. Let r denote the interest rate. The monopolist’s objective function is ∞ 0 [R(q(t)) − c(ω(t))q(t)]e−rtdt. (i) Show that at each instant the monopolist sets marginal revenue equal to the average (discounted) unit cost in the future: A(t) = ∞ t c(ω(s))re−r(s−t) ds. Hint: Consider the current cost and the future savings from changing q(t) slightly. (ii) Show that output increases over time.
Describe the Circular Flow Model. What are the five components of the circular flow diagram, as shown class? What are leaks and injections and how do they affect the economy? How are prices determined in the Circular Flow Model?
Many professionals believe it is impossible to regulate ethics. Yet, the SEC and other federal agencies provide rules, regulations, and laws surrounding corporate
Suppose the US government places a ceiling on the price of internet access also a black market for Internet providers arises, with internet providers developing hidden connections.
Suppose there is a sudden expectation of a substantial decrease in interest rates. What will this do to the demand for long term securities? What will this do to the demand of short term securities?
Damage to the parked car was $5,400, and damage to the store was $12,650. What amount will the insurance company pay for the damages. What amount will Kurt have to pay?
Tight (contractionary) money policy
Imagine you have some workers and some handheld computers that you can use to take inventory at a warehouse. There are diminishing returns to taking inventory. If one worker uses one computer, he can inventory 150 items per hour. If you assign three ..
Suppose the unemployment is above the natural rate and the economy is at an inflation rate. How does the economy return to the natural rate of unemployment if this lower inflation rate persists?
Which of the following is not a valid point in debating the merits of increasing government expenditures or cutting taxes during a recession?
Suppose a country has total GDP (Y) = $10 trillion, consumption = $7 trillion, government spending = $3 trillion, investment = $2 trillion, and taxes = $1.7 trillion. What is the level of net exports or balance of trade? What is the level of private ..
Challenge of any merger that raises the HHI by 100+ points in a market where the HHI is above 1800 before the merger.
Explain why one can refer to corporate debt as a covered call on the value of a corporation with a strike price at the level of the debt (principal plus interest). You can use the unit trust a “corporation” in your answer.
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