Home » Exams Overview » Advanced Micro I – Williams Final Edition
1. Give a brief answer to the following:
A person who loses his job through no fault of his own is also unemployed thereafter through no fault of his own.
John’s Note: Imho the best answer would be as follows:
However, I did not enable this as a choice because I expect Williams would mark such an answer wrong.
In Williams’ view, unemployment over time directly implies that the reserve wage is greater than the market wage.
In my view, it takes some amount of time and skill even to obtain an unpaid internship. So it’s not just the wage that matters.
A person who loses his job through no fault of his own could be said to be involuntarily unemployed. However, if he remains unemployed, then his unemployment is voluntary. This is possible due to the infinite wants and that his reservation wage is higher than the market wage. At less than his reservation wage, he prefers leisure to work.
2. The literature on the behavior of the firm poses it as a profit maximizer, a wealth maximizer, a growth maximizer, a sales maximizer, a sales maximizer subject to a prescribed profit rate.
Which of these do you use, why, and how do you manage to allow for these other assertions of firm behavior?
Investors consider corporations to be more valuable when they have high assets and low liabilities, and when corporations get more investors they can grow faster and earn larger profits.
Profit maximization is the most general criterion of efficiency because it compares the value of what is produced with its cost, rather than merely minimizing the cost of what may or may no be worth its costs. It is feasible for a firm to maximize sales, wealth or growth and still operate at a loss. Ideally, it should maximize these things while at the same time maximizing profit.
3. State whether the following is true or false and explain your response:
Existing firms in a cartelized industry prefer to be regulated by government.
4. Which of the following images is a graph of the standard intertemporal 2-period model?
Enter your answer as a single capitalized letter.
5. Is the following statement true or false? Explain your answer.
If you were a visitor in some underdeveloped country in which all lending and borrowing are effectively prohibited there would be no way to tell whether there were changes in the interest rate.
(#92, 2014 #2.c)
6. Is the following statement true, false, or uncertain? Explain.
A monopolist will never set price and quantity at a point where the demand is price-inelastic.
7. Atomistic markets are supposed to permit the achievement of Pareto optimality where externalities are absent.
Explain the meaning of this statement.
(#44, part 1)
8. Give a brief answer to the following:
Collusions have the natural tendency to break down.
Firms have an incentive to cheat to gain extra profits and market share. Collusions are difficult to monitor. Can’t prevent firms outside the cartel from competing, and can’t compel them to join the cartel. Small and large firms have different cost structures making quantity agreement difficult.
9. True or false: Cost curves are monetized reciprocals of product curves? Explain.
(#76, #104, 2014 2.b)
10. Do externalities offer unambiguous proof of market inefficiency or is it possible for externalities to be consistent with market efficiency?*
*Hint: Professor Williams takes the mainstream view that a situation is efficient iff it is pareto-optimal.
(#44, part 2)
Atomistic Markets == Alchain’s word for very competitive firms.
The first statement simply means that competitive markets will bring about a state of affairs where all mutually beneficial exchanges have been made, or that no more exchange can take place without making at least one individual worse off (Pareto optimal).
As far as externalities are concerned, they do not necessarily imply market inefficiency. Externalities arise in cases where property rights have not been defined, or are only defined ambiguously. However, this does not mean the situation is inefficient. For instance, as Demsetz explained, property rights institutions will arise only when it is economically efficient. Lack of property rights could mean that it is too costly to enfore said rights.
In addition to pareto-optimality, there are at least 3 other ideas of efficiency: