Let’s start Columbus Day with a few selected posts from the NewsFlashr Business Blog section:

1.  Mish of Global Economic Trend Analysis takes a look at the “One-Hand Clapping Theory” and how it relates to the “inflation/deflation” argument in the markets.

2.  Dr. Steenbarger of Trader Feed shares a quick thought and link on Retirement Planning for Traders. It’s never too early to start thinking about that.

3.  John Forman at the Essentials of Trading shares a post on the Relationship Between Stocks and FOREX. He also shares a link to his presentation at the 2009 Los Angeles Trader’s Expo presentation on Cross-Market Analysis and Trading.

4.  Dash of Insight updates the ETF Sector Report and highlights areas to watch going forward.

5.  Options for Rookies explains how to use a Probability Calculator when Trading Options.

6.  The Technical Take compares four measures of Investor Sentiment and arrives at some interesting conclusions, including “The ‘Dumb Money’ indicator is extremely bullish; the ‘Smart Money’ is neutral; insiders are net sellers; and Rydex timers seem to be on the wrong side of the trend. Thus, stocks are [better] for renting, not owning.”

7.  A post from Precious Metal Investment that seeks to answer the question “What Caused Gold’s Record Leap?”

8.  Economist Robert Salomon post an Interview he had with the Effective Executive magazine.