« January 2009 | Main | March 2009 »

February 26, 2009

Q & A

Posted by bparke at 07:32 PM | Comments (0)

February 24, 2009

Q & A

Posted by bparke at 07:32 PM | Comments (0)

February 19, 2009

Discussion of Old Exam Questions

Posted by bparke at 10:21 PM | Comments (0)

February 17, 2009

Utility-Based Valuation of Risk - I

Three alternatives:

P2170012a.jpg

Two alternatives:

P2170014a.jpg

P2170018a.jpg

P2170020a.jpg

P2170022a.jpg

Posted by bparke at 10:16 PM | Comments (0)

February 12, 2009

Saving for Retirement

P2120073a.jpg

P2120076a.jpg

Posted by bparke at 08:51 PM | Comments (0)

Income and Substitution Effects

P2120066a.jpg

P2120067a.jpg

P2120070a.jpg

Posted by bparke at 07:10 PM | Comments (0)

February 10, 2009

Revisiting Investing in Education

P2100050a.jpg

P2100052a.jpg

Posted by bparke at 08:45 PM | Comments (0)

Intertemporal Substitution

P2100041a.jpg

P2100043a.jpg

The next lecture will show that this is caused by the income effect reversing the substitution effect:

P2100044a.jpg

P2100048a.jpg

Posted by bparke at 07:10 PM | Comments (0)

February 05, 2009

An Example: Investing in Education

P2050022a.jpg

P2050025a.jpg

P2050027a.jpg

Posted by bparke at 08:15 PM | Comments (0)

Investment Decisions

Invest if:

1. The present value of the costs is greater than the present value of the benefits, or

2. The rate of return is greater than the interest rate on money borrowed to finance the project.

The first criterion is easier to calculate and will be used in class. The second is common in the outside world because it abstracts from detailed numbers and applies across projects.

P2050020a.jpg

Posted by bparke at 08:12 PM | Comments (0)

February 03, 2009

Stocks

Our first theory sounds good, but is a little too general:

P2030036a.jpg

Our second attempt at a theory does not explain the data on prices and dividends very well:

P2030024a.jpg

P2030025a.jpg

Accounting for expected growth in dividends produces a much more realistic model.

P2030028a.jpg

A lemma:

P2030029a.jpg

P2030032a.jpg

An alternative model:

P2030034a.jpg

Posted by bparke at 10:38 PM | Comments (0)