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Wednesday, December 15, 2010

Moral Hazard and Modern Finance

The Inequality That Matters - Tyler Cowen - The American Interest Magazine:
some investors opt for a strategy of betting against big, unexpected moves in market prices. Most of the time investors will do well by this strategy, since big, unexpected moves are outliers by definition. Traders will earn above-average returns in good times. In bad times they won’t suffer fully when catastrophic returns come in, as sooner or later is bound to happen, because the downside of these bets is partly socialized onto the Treasury, the Federal Reserve and, of course, the taxpayers and the unemployed.
To understand how this strategy works, consider an example from sports betting. The NBA’s Washington Wizards are a perennially hapless team that rarely gets beyond the first round of the playoffs, if they make the playoffs at all. This year the odds of the Wizards winning the NBA title will likely clock in at longer than a hundred to one. I could, as a gambling strategy, bet against the Wizards and other low-quality teams each year. Most years I would earn a decent profit, and it would feel like I was earning money for virtually nothing. The Los Angeles Lakers or Boston Celtics or some other quality team would win the title again and I would collect some surplus from my bets. For many years I would earn excess returns relative to the market as a whole.

Yet such bets are not wise over the long run. Every now and then a surprise team does win the title and in those years I would lose a huge amount of money. Even the Washington Wizards (under their previous name, the Capital Bullets) won the title in 1977–78 despite compiling a so-so 44–38 record during the regular season, by marching through the playoffs in spectacular fashion. So if you bet against unlikely events, most of the time you will look smart and have the money to validate the appearance. Periodically, however, you will look very bad. Does that kind of pattern sound familiar? It happens in finance, too. Betting against a big decline in home prices is analogous to betting against the Wizards. Every now and then such a bet will blow up in your face, though in most years that trading activity will generate above-average profits and big bonuses for the traders and CEOs.

To this mix we can add the fact that many money managers are investing other people’s money. If you plan to stay with an investment bank for ten years or less, most of the people playing this investing strategy will make out very well most of the time. Everyone’s time horizon is a bit limited and you will bring in some nice years of extra returns and reap nice bonuses. And let’s say the whole thing does blow up in your face? What’s the worst that can happen? Your bosses fire you, but you will still have millions in the bank and that MBA from Harvard or Wharton. For the people actually investing the money, there’s barely any downside risk other than having to quit the party early. Furthermore, if everyone else made more or less the same mistake (very surprising major events, such as a busted housing market, affect virtually everybody), you’re hardly disgraced. You might even get rehired at another investment bank, or maybe a hedge fund, within months or even weeks.

Moreover, smart shareholders will acquiesce to or even encourage these gambles. They gain on the upside, while the downside, past the point of bankruptcy, is borne by the firm’s creditors. And will the bondholders object? Well, they might have a difficult time monitoring the internal trading operations of financial institutions. Of course, the firm’s trading book cannot be open to competitors, and that means it cannot be open to bondholders (or even most shareholders) either. So what, exactly, will they have in hand to object to?

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