Tag: quants

Investment banks, scientific research and cows

I’ve commented earlier on this blog about how investment banks indirectly fund scientific research – by offering careers to people with PhDs in pure sciences such as maths and physics.

The problem with a large number of disciplines is that the only career opportunity available to someone with a PhD is a career in academia. Given that faculty positions are hard to come by, this can result in a drop in number of people who want to do a PhD in that subject, which has the further effect of diminishing research in that subject.

Investment banks, by hiring people with pure science PhDs, have offered a safety net for people who haven’t been able to get a job in academia, as a consequence of which more people are willing to do PhDs in these subjects. This increases competition and overall improves the quality of research in these topics.

Beef is like investment banks to the dairy industry. I recall an article (can’t recall the source and link to it, though) which talked about V Kurien of Amul going to a meeting called by the Union government on banning cow slaughter. Kurien talked about his mandate from his cooperative being that everything was okay as long as cow slaughter wasn’t banned – for that would kill the dairy industry.

Prima facie (use of latin phrase on this block – check)  this might sound like a far-fetched analogy (research to cows). However, cow slaughter has an important (positive) role to play in encouraging the dairy industry.

When you buy a cow, you aren’t sure how good it is in providing milk, until you’ve put it through a few cycles of childbirth and milking. If after purchase it turns out that the cow is incapable of producing as much milk as you were promised, it turns out to be a dud investment – like getting a PhD in a field with few non-academic opportunities and not being able to get a faculty position.

When cow slaughter is permitted, however, you can at least sell the cow for its meat (when it is still healthy and fat) and hope to recover at least a part of the (rather hefty) investment on it. This provides some kind of a “safety net” for dairy farmers and encourages them to invest in more cows, and that results in increasing milk production and a healthier dairy industry.

This is not all. Legal slaughter means that there is a positive “terminal value” that can be extracted from cows at the end of their milking lives. Money can also be made off the male calves (cruel humans have made the dairy industry one-to-many. Semen from stud bulls is used to impregnate lots of cows, and most bulls never get to fuck) which would otherwise have negative value.

A ban on killing cows implies a removal of these safety nets. Investing in cows becomes a much more risky business. And lesser farmers will invest in that. To the detriment of the dairy industry.

There are already reports that following the ban on cow slaughter in Maharashtra last year, demand for cows is going down as farmers are turning to the more politically pliable buffaloes.

Similarly, with the investment banking industry seeing a downturn and the demand for “quants” going down, it is likely that the quality of input to graduate programs in pure science might go down – though it may be reasonable to expect Silicon Valley to offer a bailout in this case. Cows have no such luck, though.

Addition to the Model Makers Oath

Paul Wilmott and Emanuel Derman, in an article in Business Week a couple of years back (at the height of the financial crisis) came up with a model-makers oath. It goes:

• I will remember that I didn’t make the world and that it doesn’t satisfy my equations.

• Though I will use models boldly to estimate value, I will not be overly impressed by mathematics.

• I will never sacrifice reality for elegance without explaining why I have done so. Nor will I give the people who use my model false comfort about its accuracy. Instead, I will make explicit its assumptions and oversights.

• I understand that my work may have enormous effects on society and the economy, many of them beyond my comprehension.

While I like this, and try to abide by it, I want to add another point to the oath:

As a quant, it is part of my responsibility that my fellow-quants don’t misuse quantitative models in finance and bring disrepute to my profession. It is my responsibility that I’ll put in my best efforts to be on the lookout for deviant behavour on the part of other quants, and try my best to ensure that they too adhere to these principles.

Go read the full article in the link above (by Wilmott and Derman). It’s a great read. And coming back to the additional point I’ve suggested here, I’m not sure I’ve drafted it concisely enough. Help in editing and making it more concise and precise is welcome.

 

How do i describe my job?

One of the “problems” with my job, if I can describe this as one, is that it’s tough to explain my job to a layman. There are multiple levels of disconnects here, and multiple “pitfalls”, if I can call them that. So when someone asks me about my work, it gets tough indeed to describe to any degree of accuracy while at the same time being concise, and at the same time talking in Kannada.

I am a quant at a hedge fund.

My work involves coming up with trading strategies, and then developing them to a level where I can have the ultimate fighter – a computer – to trade using these strategies. Then, I will need to figure out how the computer is going to implement these strategies and this part involves some heavy engineering work. And finally I code. Ok now I haven’t been accurately able to describe in one paragraph, writing in English, about my job. How do you expect me to describe it to the layman speaking in Kannada?

Coding is a part of my job, but I’m not a coder.

I deal with financial products – equities and equity derivatives. But I’m strictly not a finance guy – as far as I’m concerned, each security is just a time series. A time series on which I can trade and make money. In fact, apart from my short stint selling interest rates swaps in London, I haven’t really done any finance. My entire view of the markets is based on my idea that a security is just a tradeable time series. I think I should do a separate post on that. Anyways, I’m not strictly a finance guy also.

One of my degrees is an MBA. A PGDM to be precise, from IIMB. But I’m not a manager also. I don’t manage people apart from myself.  I’m not sure I’ll find that interesting either – I sometimes think managing is too fighter a job for me.

And so on.

And then, I work for a hedge fund. Most people don’e have a clue what a hedge fund is. I sometimes make an approximation and tell them I work for a mutual fund. And immediately I get bombarded with questions like my opinion on whether the markets will go up or down, and about how long the recession is going to last. And then there are those who start telling their sob stories about their investments in the markets when the Sensex was at 20,000 and about how markets can’t be trusted any more.

Another level of contradiction is that I’m based in Gurgaon. All finance companies are supposed to be in Bombay, right? Surely, given that I’m in Gurgaon, I must be doing some back office kind of work?

Last night my uncle was filling up some arranged marriage exchange registration form for me. And he asked me to describe my job in a short phrase. I immediately came up with “trader” and that got quickly shot down since that would give the image of a lala sitting behind huge weighing scales. Next I tried “financial trader” and “quantitative trader”. No go.

Then I wanted the simple “quant”. My highly stud uncle himself had trouble exactly figuring that out, so fat chance anyone would appreciate that. So out again. I relaxed constraints a bit and said “hedge fund professional”. But most people wouldn’t understand “hedge fund”. “mutual fund” was no go for a written form. “quantitative analyst” was considered too country by my uncle. He then asked me my designation. “Associate” doesn’t mean anything, he said and shot that down too.

Sometimes I wonder if I’ve unnecessarily complicated life for myself by choosing the path that I’ve chosen. If I were working for some software company I could’ve just written “software” over there and all would’ve been fine. The whole world would’ve understood, or at least claimed to have understood. Or even better, if I were living abroad, I wouldn’t have even been required to say that much. I’d’ve been just qualified as a “foreign huduga”, with most people not even caring for which city I was in.

For the record, my listing application records my profession as “financial services professional”, as country as it sounds. This was the only middle ground where my uncle and I didn’t disagree. And in it went. It increasingly looks like I’ll have to put fundaes to Cesares about why the stock markets have gone down in the last one year in order for them to allow their daughters to marry me. I have half a mind to start describing Ito’s lemma the next time someone asks me where the markets are headed. I’ll probably start off describing to them a random walk. And say that it’s a drunkard’s walk. And perhaps use that to change the topic. I think I might need to start practicing this. In Kannada.

I’m a quant at a hedge fund.

The Aftermath

Baada collaborated on the research leading up to his post. I hereby acknowledge his contribution and condemn his laziness for not blogging it himself.

One of the major problems of the financial crisis that has been happening for about two years now is that investment bankers, as a profession, stand discredited. Before this, they used to claim to be on the top of the intellectual ladder. And now, thanks to a handful (more than a handful; but still a small proportion) of phenomenally stupid investment bankers, the entire community stands discredited. Not just that, they have left the community of quants, of people who can be good at structuring, of finance people, of statisticians, all discredited. You say “all you need to do is to get a few ibankers into these jobs” and you’ll have people come at you like a pack of hounds, waving Mint and saying “look at the damage these buggers have caused, and you think they can solve this problem”.

So Baada and I were talking about cricket the other day. About how thanks to the demands of television, flat pitches are being prepared everywhere. Which is leading to tame and boring draws. Which has led to domestic cricket being effectively reduced to a one-innings game. Which has led to massive fourth innings run chases. Which has led to bowlers break down once every couple of seasons. And so forth.

The argument put forth in favour of flat pitches is that in order to maximise television revenues, you need the game to last five days. Excellent argument, and Baada and I agreed to it. But the friggin’ point is that if you have  a boring game, no one is going to watch it. If you have a game that is most likely to end up as a draw, it will have no audience. Advertisers would be paying through their nose for near-zilch viewership.

In the medium term, things should even out. Advertisers will realize that due to the boring nature of Test cricket, no one will watch it anyway, and will back away. Ad rates will fall. And TV rights bids will fall consequently. And the boards will understand their folly and take steps to make cricket interetsing again. (there is also the danger that boards will use this to say that no one watches Test cricket anymore and scraps it altogether). However, advertisers should not be so passive and wait for things to even out.

Given a large number of statistics, playing conditions, day of week seasonality and all such stuff, it shouldn’t be hard for the smart advertiser to figure out which are going to be his most profitable slots. And bid specifically for those. If one smart advertiser does that, then that advertiser stands to gain against other advertisers who will end up paying more money for less profitable slots. And so all advertisers will become smart. Now, the channels will stop seeing uniform demand patterns for their various advertising slots. They will now need to acquire smartness in order to combat the smart advertisers. This way, smartness will prevail in the system.

I’m sure that once something like this happens, natural balance will get restored. It will take much less time for TV channels to realize that three-day Tests on bowling pitches can get them greater revenues compared to runfests played over five days. And they won’t take much time to communicate the same to the boards who will then restore Test cricket back to glory.

The problem with a lot of advertising people is that they see themselves as “creative people” because of which they assume they don’t need to know and use maths. And they don’t do the smart calculations I described earlier. As for the brand managers, it is likely that a lot of them decided to pursue marketing because they either didn’t like quant or found themselves weak at quant. Apart from a few simple excel models, they too are likely to shun the kind of smartness required here.

So where are the white knights who can save the version of the gentleman’s game played in whites? Not currently in the ad agencies. Most likely not in the marketing departments. They are all out there. A few months ago, they were employed. Earning very good salaries, and grand bonuses. Earning amounts of money unaffordable to most advertising and marketing companies. Thanks to the financial meltdown, they are available now. Looking for a fresh challenge.

This is the best time for you to infuse quant to your business. You won’t get the kind of quant supply in the market that you are seeing now. Even if the financial industry doesn’t recover (in any case it will never go back to 2007 levels), supply side factors should ensure lower supply. Do that little experiment now. Acknowledge that numbers can do a lot of good for your business. Understand what structuring is all about, and estimate the kind of impact a good structurer can have on your revenues. Make that little bit effort and I’m sure you’ll get convinced. Go make that offer. An offer these ex-ibankers can’t refuse in the current circumstances at least.

PS: When I refer to investment banking, I also include the “outside-the-wall” side of the business (called “markets”; “sales and trading”; “securities” and various other names). In fact, I mostly talk about the outside-the-wall business, not having had any exposure inside the wall.