Friday, May 10, 2013
Welcome to Online Business Tips
Thursday, November 8, 2012
The Golden Rules of Investing
Earlier this year some folks from the U.K. came to our house to make videos in which I pontificated about passive investing. Some of the material will be included in longer pieces on their site but short snippets are also available there.
Here is one on my views of the two most important rules of investing:
The Golden Rules of Investing (Video)
The Capital Asset Pricing Model in Brief
Here is a very short video made at our home by the folks at sensibleinvesting.tv. In it, I explain the essence of the Capital Asset Pricing Model. As one can imagine, I have said more (much more) elsewhere.
Here is the link:
What is the Capital Asset Pricing Model?
Wednesday, November 7, 2012
Magical Thinking about Pension Plans
Monday, March 14, 2011
Pension Obligation Bonds
Wednesday, November 24, 2010
Thursday, January 29, 2009
Derivatives
Depressions may or may not be in store. But times are bad enough now and excessive debt and reckless use of some derivatives clearly deserve much of the blame.
Most of us have direct experience with debt. You give me money now and I promise to repay you later with interest. Of course it is not always this simple. The bewildering complexity of some debt instruments can boggle the mind. But at least the fundamental idea of debt is familiar.
In contrast, you may think that you have never bought or sold derivatives and have little or no notion about their good and bad features. What are they? Are they really needed? If they are malevolent why not just outlaw them?
Here is a starter course. I will have more to say in future posts.
Wikipedia defines financial derivatives as follows:
Derivatives are financial contracts, or financial instruments, whose values are derived from the value of something else (known as the underlying).
I was brought up to take umbrage when an adjective ("underlying the ...") morphs into a noun ("the underlying"), but this usage is too pervasive to ignore.
A financial derivative is a contract in which one party promises to make a payment to another party in the future, where the amount to be paid is based on the value of something else (known as the underlying) at the time.
Even this is not broad enough but will do for now.
Here is a graph of an example that appeals to many investing for their retirement years.

But wait. What do you have to pay for this contract? More than $100 of course. Perhaps $110. So you could lose money, but no more than $10 out of your initial investment of $110.


The symbol x represents the final value of the underlying. For emphasis I have put a tilde (squiggly line) over it to indicate that its actual value is not known with certainty before the payoff date. The symbol y represents the value of the payoff, which is also uncertain today. The symbols f(..) represent a function, which relates the promised payoff to x. In this case, it is the red line in our first figure – it shows the relationship between the underlying (x) and the promised payoff.
