I have always admired those value investors who claim to be able to ignore everything around them and just focus on individual stocks. Even though my final buy and sell decisions are always based on absolute value, I find it very difficult to ignore the world around me.

I am sure the stock of buggy whip companies sold very cheaply in the early 1900s. Given that their entire market was disappearing, they were not even worth considering until trading well below cash and liquidation value. There are social and demographic trends that can have positive as well as negative effects on stock prices.
Catching these trends early while the stocks are still cheap can make you a lot of money over time. In the 1990s, for example, the major trend was personal computers and the Internet. Most value guys missed that one, but if you realized that Michael Dell and Steve Jobs and their little machines were going to pretty much replace mainframes, there was money to be made. Both Dell
There was another trend in place in that decade that almost as much fun and as profitable as the Web. In the aftermath of the banking and S&L crisis, interstate banking regulations were relaxed, which set off a merger boom that last well into the late part of the decade. Many of the banks were trading well below book value and mergers were done around twice book. It was the most fun I ever had as a broker or investor.
In this decade we have seen two strong trends run to bubble status before popping and both started out from very cheap levels. Anyone tracking the massive amounts of money flowing into the system after 2001 realized that banks were about to make a lot of money. Rising oil and commodity demand form strong emerging economies had to be bullish for these stocks and they were very cheap at the time the money started flowing.

Politics aside, our roads, bridges, power plants and water systems need a lot of work. We can delay the work but eventually in the not-too-distant future the work has to be done. My watch list of stocks in this area is pretty long. Companies like LB Foster
Another theme that I see emerging is one I touched on briefly yesterday. The fiscal carnage of the credit crisis is going to change the way people spend their money. We have seen the stock market drop like this before but always had the value of our home equity to fall back on. A lot of people have seen their net worth halved in the last two years. That changes the way you think and spend.
It will be a long time before we see people go on a spending binge fueled by home equity and credit cards. People will think before they spend. Obviously this favors companies like Wal-Mart

Regulatory and political issues have kept me from buying China based companies, but this is a thesis I have been revisiting. I am talking to everyone I can find to learn more about the risks and rewards of owing Chinese stocks. I will keep you updated as I climb the curve.
Buying cheap stocks with a margin of safety is and will always remain rule number 1 for me when investing. However, if I can find stocks that meet my criteria that can ultimately benefit from underlying trends I consider that a two-for-one special, something rarely seen outside of happy hour.
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