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Coevolution in species (predator-prey, for example) is a commonly occurring phenomenon. The same thing, loosely, can apply to many other things like criminal behavior and how it coevolves with law enforcement techniques.

An interesting place where you see coevolution at work is in telemarketing. If you think about it, they are the predator and you are the prey. Their objective is to get you to pick up the phone and then not put it down. Your objective is to not pick up the phone.

Before Caller ID, you were losing the battle. You had to pick up the phone. You didn’t know who was calling.

After Caller ID, it was better, but not if you were prepared to ignore every call except the numbers that you recognized. Also, the telemarketers adapted and started blocking Caller ID. But then you started avoiding calls with no Caller ID. And then they switched back to numbers but no names or innocuous names. And so on.

Then came the National Do Not Call Registry in the US. That tilted the balance decisively in your favour. It still left the non-profits who are exempted from the DNC stipulations. You were still having to walk up to the phone when the local charity called and you didn’t want to donate this year. But then you got that new phone which can read out the name on the Caller ID. And that was that. End of the telemarketing nuisance.

Not quite. Last year I started getting robo calls on my mobile phone from a company selling extended warranties for cars. I pick up most calls to my cellphone, even if I don’t recognize the number. It was very irritating. I actually lodged a complaint with the FTC about these guys. Apparently many others did too. Thankfully its been turned off. The people behind it must have figured that whatever they were doing was worth flirting with FTC for. Or maybe they don’t even live in the US. Who knows.

I still get a moderate number of telemarketing calls. If you are of Indian origin, like me, you may still be getting calls from India. With telecom costs between India and the US dropping sharply in recent years, the call activity is going up as well. We regularly get calls from DirectTV and Airtel. The latter in fact has been calling from a Delhi cell phone to my cell phone (where did they get my mobile number?).

The companies that call from India use Caller IDs in different ways. Some of them send out a US number which I think is a losing strategy (one of them sends out a toll free number). Some of them block Caller ID, which, I believe is a better strategy. With almost no calls from telemarketers in the US, you are probably losing your old aversion of picking up a call with no Caller ID. Or maybe, I have a special situation. A friend of ours we regularly talk to had blocked her Caller ID at one time.

This is known to occur even in predator-prey coevolution where a defence that the prey had developed in response to a certain predatory tactic is lost through the millenia. When the predator evolves the same trait again, the prey has no defence against it.

Callers from India seem to have the ability to put just any old number in the Caller ID. Like say “2222”. Or use an Indian number. I will pick up any call with an Indian number on it. Which is why I get snagged often.

But it doesn’t end at Caller ID and getting you to pick up the phone. Since the dialing out is typically done by a dialer which connects an agent only after you pick up the phone, there is a lag before someone starts speaking at the other end. Most people will realize it’s a telemarketing agency and put the phone down. This must cost a lot in agent time at the other end.

Which probably explains, in a crazy way, the latest Caller ID tactic. Yesterday someone called us. The Caller ID name said “Telemarketer”. We didn’t pick up the phone. But if someone does, you can be sure they want to talk. And it could be the beginning of an honest, trusting relationship.

Raj Rajaratnam the boss of Galleon, a hedge fund in New York was arrested on Friday for being the mastermind of an insider trading network. That network included people in other hedge funds, private equity funds, consultants and corporate executives – all involved in trading insider information on public companies for profit.

In my four years at Gridstone, I met many hedge funds on sales calls. We offered a research platform with deep data on public companies which should have been of interest to any analyst who invested in public companies based on their fundamentals. But slowly I realized that there were very few in the hedge fund world that actually researched companies to any depth. Most just “traded the news” or were what is called “momentum traders”.

There were reasons for this. Understanding companies requires time and application. At about twenty companies in one or two industries, you start hitting the ceiling of what is possible for one analyst to cover. Hedge funds often don’t have the assets to be able to afford that many analysts.

But I think the real reason is that it is too damned difficult to beat the index just analyzing companies based upon publicly available information. Everyone is seeking an informational edge over the market. Some of this edge is through channel checks and such legal but proprietary sources. Much of it is through rumors – legal but quasi-public. And some of it is through insider information.

Informational edge is a slippery slope at the bottom of which lies insider information – the most alpha-producing informational edge. If you are a high achiever like most hedge fund managers are, and you have profited from proprietary information in the past, it is almost irresistible to cross the line. It doesn’t help that the difference between the difference between a rumor and insider information is only in how the information was procured. A rumor very well could have started its life as insider information. On large caps, placing a bet that is significant for the fund but small enough to escape being noticed is not too difficult. My belief is that insider trading is far more common than what one major bust every few years will make it seem like.

For Raj Rajaratnam and Danielle Chiesi this was about their hedge funds’ performance. But why did Anil Kumar and Rajiv Goel get involved in this? Perhaps the price of admission to invest in Galleon – which was ironically a fund whose performance was based on insider trading – on their tips.

The other irony here is that two of the major players in the insider trading ring are of Indian origin. So is the prosecuting attorney – Preet Bharara – US attorney for the Southern District of New York.