A manager wishes to estimate an average cost equation of the following form:C = a + bQ + cQ2whereQ is the level of output. Letting Z = Q2 and using least-squares estimation, the manager obtains the following computer output: 
Given the above information, when output is 20 units, what is average cost?
A. $340
B. $280
C. $360
D. $160
E. $200
Answer: D
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In a perfectly competitive market, the market price is $23. At the current level of output, a firm has a marginal cost of $28. What should the firm do?
A) produce a larger output to make more profit B) nothing, it is currently maximizing profit C) produce less output to make more profit D) shut down E) raise the price of its product
If there is an increase in the price of broccoli because of disastrous weather that destroys about half of this year's spinach crop, which of the following could be TRUE?
A) The cross elasticity of demand between spinach and broccoli is negative 1.25. B) The demand curve for broccoli has shifted rightward and the cross elasticity of demand between spinach and broccoli is positive. C) The demand curve for spinach has shifted to the leftward and the cross elasticity of demand between spinach and broccoli is positive. D) The demand curves for spinach and broccoli have become more cross inelastic.
Modern hedge funds typically make investments that involve
A) hedging. B) speculating. C) acquiring safe, short-term assets. D) focus on stocks instead of bonds.
In the new Keynesian model, expected inflation is a function of ________
A) expected future output gaps and markup shocks B) current and past inflation C) unanticipated aggregate demand shocks D) expected growth of the money supply