All other things being equal, should you buy stocks in December and sell them in January?

There is a large literature using financial market data on the causes of a “January effect,” which produces higher stock prices in January than in other months of the year. We present the first experimental study of this phenomenon in the context of two well-known auction experiments. After controlling for variables that could influence subject bids, such as differences in private values, cumulative earnings, and learning effects, the prices in the January markets were systematically higher than those in December, a difference that is economically large and statistically significant. The results provide support for the conjecture that psychological factors may contribute to the well-documented January effect in empirical stock market data.

Source: "Yes, Wall Street, There Is A January Effect! Evidence from Laboratory Auctions" from Journal of Behavioral Finance, Volume 8, Issue 1 April 2007 , pages 1 - 8

Great books on Wall Street are here and here. Best, most accessible book on personal finance out there is I Will Teach You To Be Rich. I like his system of automating your finances.

Related posts:

Can you get rich by insider trading -- legally?

Does the stock market discriminate against companies that have women on their board?

Does Ramadan help the stock market?

Is it better to invest in stocks, bonds or... a Stradivarius?

Are female CEO's undercompensated?

Do good Super Bowl commercials mean higher stock market returns?

Do investors obtain their returns smoothly over time or is their performance determined by the return of a few outliers?

Can you tell how successful a female CEO's company is by looking at her face?

Nature or Nurture: What Determines Investor Behavior?

You should follow me on Twitter here. You can also subscribe to the blog's feed or follow on Facebook. If you want to help support the blog, please do your Amazon shopping via this link. Here are the site's most popular posts of all time.