Thursday, October 18, 2007

What are transaction costs and how can they be reduced by exploiting economies of scale?

Why do higher interest rates increase adverse selection in the loan market?

Distinguish symmetric information with asymmetric information, and state why the distinction is important for the financial system.

What is the difference between moral hazard and adverse selection? How does each contribute to making information asymmetric?

How is information collection in financial markets is subject to the free rider problem? How do banks overcome the free rider problem?

Explain, verbally and graphically, what the "lemons problem" is. How does the lemons problem lead many firms to borrow from banks rather than from individual investors?

Why might the number of loans that aren't repaid to banks rise as interest rates rise? What might be a better strategy for banks than raising interest rates?

Suppose that a bank makes a loan to a business and that the loan contract specifies that the business is not to engage in certain lines of business. What is this type of provision called? Why would the bank make such a provision?

What is the name of the main problem associated with the separation of ownership and management? What do managers do that owners don't like? What types of solutions are available?

Is a large firm with thousands of shareholders more or less likely to suffer a principal-agent problem than a small firm with just a few shareholders? Explain.

Why don't insurance companies sell income insurance? That is, if a person loses his or her job or doesn't get as big of a raise as anticipated, that person would be compensated under his or her insurance coverage.

Differentiate between investment bankers and securities brokers.

Define contractual saving. How do insurance companies know how high their premiums should be for life and accident insurance? What kinds of problems do they face in assessing risk?

CircleLending is a new Massachusetts-based company that administers loans between family members and friends. The interest rates are lower than the market rates. Listen to this NPR story about the company, and then evaluate its business in terms of transaction and information costs, and default and credit risks. Why is there a disparity between CircleLoan's rates and market interest rates? When might it make sense for a parent to loan money to a child (via CircleLending) even after a bank may have rejected the child's loan application?
Here is The Economist on the 1987 stock market crash.

Tuesday, October 16, 2007

Define adaptive and rational expectations. Give examples of each.

Would a liquid market be an efficient market? Why or why not?

In a market in which investors and traders have rational expectations, what should the price of an asset equal?

Give a concise definition of the efficient markets hypothesis. What assumptions does it require about liquidity and information?

If you believe that the stock market is an efficient market, why would an investment strategy of "buy and hold" be a good idea?

Why are fads inconsistent with the predictions of the efficient market hypothesis? Also define: revert to the mean, circuit breakers, the greater fool theory.

What is program trading? Does it play a significant role in increasing market volatility? What are some of the other problems with EMH discussed in class today? Why would Warren Buffett likely not embrace this hypothesis?

Monday, October 15, 2007

BusinessWeek's cover story this week is on that sinking feeling that happens when housing prices fall. (Read it.) Economists often refer to this as the greater fool theory, and they apply it to assets prices in general (not simply housing).