Month: June 2009

Statistics and Basketball for Beginners

I think that the general difficulty that many people have in understanding statistics is an important problem, because it leads people to misinterpret the world around them. General managers of baseball teams overpay for free agents coming off of good years because they underestimate the chances that the recent good year was just the result of variance around a mediocre mean – or at least they did until the Billy Beane era. Retail investors plow money into expensive mutual funds that have beaten the S&P 500 index for a few years in a row because they underestimate the chances that recent success is the result of pure, dumb luck; more importantly, the scandal of mutual fund expenses goes unchallenged because of the conventional wisdom that you should pay more to get into “better” funds. (I think it is possible, though unlikely, that some fund managers could actually be better than the market; but with all the statistical noise, you are not going to find them unless you look at a very long period of time.)

So I was happy to learn that my second-favorite radio show, Radiolab, was doing an episode on randomness. (You can stream it at that link, or download an MP3 from their podcast.) Their first segment does a good, clear job of debunking the human tendency to make too much of seemingly improbable events. For example, a woman in New Jersey wins the lottery in two consective years; what are the chances? But if you look at all the lotteries and all the lottery winners everywhere, it would be shocking if you didn’t have repeat winners.

Continue reading “Statistics and Basketball for Beginners” →

The Two Sides of the Balance Sheet

Noam Scheiber at The New Republic has the inside scoop (hat tip Ezra Klein) on why Treasury is letting the Public-Private Investment Program die a quiet death (although at this point the legacy securities component may still go ahead). In short, the argument is that the point of PPIP was to help banks raise capital by cleaning up their balance sheets; since they have been able to raise capital themselves, there is no need for PPIP. According to one person Scheiber spoke to: “If you had asked–I don’t want to speak for the secretary–what’s problem number one? I think he’d say capital. Problem two? Capital. Problem three? Capital.”

This represents the latest swing of the pendulum between the two sides of the balance sheet. As anyone still reading about the financial crisis is probably aware, a balance sheet has two sides. On the left there are assets; on the right there are liabilities and equity; equity = assets minus liabilities. (There are different definitions of capital, depending on what subset of equity you use.)

Continue reading “The Two Sides of the Balance Sheet” →

Benefits of Size?

Felix Salmon points out that Bank of America can now charge customers overdraft fees ten times a day (up from five). (Read the original Washington Post article if you want to be aggravated.) Well, I can do one better.

I recently had to track down some past bank records. Local banks? No problem, no fee. At Bank of America, however, they insisted on charging me $5 per page – even though they were breaking a state law forbidding them from charging a fee. (All I’ll say is that they weren’t allowed to charge a fee because of the characteristics of the person I was getting the records for and the purpose for which he needed the records.) I pointed out to the drone at the bank that she was breaking the law, but she insisted she couldn’t do anything about it and we would have to sue them to get the money back. And I believe her; the problem is almost certainly that requests go from the local branch to some central processing center, and there is no way for the local branch to tell the central processing center not to deduct the fee from your account.

Now perhaps this central processing center setup reduces costs for Bank of America. But do they charge lower mortgage rates? No. Do they offer higher savings rates? No. Are they too big to fail? Absolutely. Do things have to be this way?

Update: Some people have pointed out that you don’t actually have to sue B of A to get your money back. That is correct. In my state you can send them a demand letter and they should pay you. However, the problem is that because you are dealing with your bank, they can just deduct the money from your account and force you to fight them to get it back. And most people don’t want to deal with that.

By James Kwak

The Cost of Life

Mark Thoma links to a medical paper that brings up the issue that few people want to talk about: at what point is the cost of medical care to extend life not justified? Like Thoma, I don’t have a great answer, except to point out that in a world of scarce resources, the answer cannot be that any effort to extend life by any small amount is always a good idea. (And as David Leonhardt explained, our health care system is certainly constrained by scarce resources, whether we like it or not.)

I just have one observation and one recommendation.

The observation is that our political and legal systems already put price tags on life routinely. If you die on the job, the workers’ compensation system calculates how much your life was worth; if you are killed as a result of someone else’s negligence, the tort system does the same. In either case, the calculation is primarily based on your expected earnings for the rest of the life; in other words, young high-earners are worth more than old poor people. And for virtually everyone, the number you end up with is much less than the value implied by the cancer treatment discussed in the paper Thoma cites.

I’m no fan of that system. I’m just surprised that as a society we can be so brutal and inegalitarian in one sphere and so touchy in another (health care, where the thought that any life-extending treatment might be too expensive is probably considered morally abhorrent by most people).

The recommendation is that if you are interested in this issue, you should listen to Dr. Robert Martensen on Fresh Air. Martensen is not only a doctor and a bioethicist, but at the time of the interview I believe (my memory might be failing me) he was dealing with the imminent death of one of his parents, and the medical choices involved.

By James Kwak

No Way Out: Treasury And The Price Of TARP Warrants

Buried in the late wire news on Friday – and therefore barely registering in the newspapers over the weekend – Treasury announced the rules for pricing its option to buy shares in banks that participated in TARP.

The Treasury Department said the banks will make the first offer for the warrants. Treasury will then decide to sell at that price or make a counteroffer. If the government and a bank cannot agree on a fair price for the warrants, the two sides will have the right to use private appraisers.

This is a mistake.  Continue reading “No Way Out: Treasury And The Price Of TARP Warrants” →

Debating the Public Plan

Greg Mankiw weighs in directly (as opposed to beating around the bush) on the public plan. Here’s the summary:

Recall a basic lesson of economics: A market participant with a dominant position can influence prices in a way that a small, competitive player cannot. . . .

If the government has a dominant role in buying the services of doctors and other health care providers, it can force prices down. Once the government is virtually the only game in town, health care providers will have little choice but to take whatever they can get. . . .

To be sure, squeezing suppliers would have unpleasant side effects. Over time, society would end up with fewer doctors and other health care workers. The reduced quantity of services would somehow need to be rationed among competing demands. Such rationing is unlikely to work well. . . .

A competitive system of private insurers, lightly regulated to ensure that the market works well, would offer Americans the best health care at the best prices.

Whenever someone uses the phrase “basic lesson of economics” when discussing the U.S. health care system, you should be suspicious. As Paul Krugman says, “the standard competitive market model just doesn’t work for health care: adverse selection and moral hazard are so central to the enterprise that nobody, nobody expects free-market principles to be enough.”

Continue reading “Debating the Public Plan” →

The Paradox of Strategic Defaults

Real Time Economics and Calculated Risk both discuss new research by Paola Sapienza, Luigi Zingales, and Luigi Guiso on homeowners defaulting on mortgages even though they have the money to pay them. According to their research, 17% of households would default when their negative equity reaches 50% of the house’s value. The argument is that public policy has not sufficiently addressed this problem, focusing instead on homeowners who cannot afford their mortgages.

Let’s make this a little more concrete. Let’s say you bought a house with zero money down for $300,000 in early 2006. A few years later, the house is now worth $200,000, so your negative equity is 50% of the market value. Yet only 17% of people in your situation would walk away from the house. The other 83% would continue to pay the mortgage,  essentially throwing money away. Apparently people value the transaction costs of moving and the damage to their credit ratings at $100,000 (I think my numbers are approximately on the right scale – if anything they are probably low) – even after the fact that you can live in a house for free for several months before being evicted.

Or people are not as rational as economists would assume.

By James Kwak

The Danger of Discretion

Justin Fox says that financial regulation should be simpler and should give less discretion to regulators.

The argument goes like this: the biggest flaw in current financial regulation is not that there is too little of it or too much, but that it relies on regulators knowing best. We regulate because financial systems are fragile, prone to booms and busts that can have harmful effects on the real economy. But regulators aren’t immune to the boom-bust cycle. They have an understandable habit of easing up when times are good and cracking down when they’re not.

As I’ve said before, the Obama Administration’s plan is likely to give us more sophisticated regulation, but if it doesn’t give us more powerful regulators with more incentive to stand up to the industry, all the sophistication in the world won’t matter. Regulators didn’t use the tools they had – the Fed could have policed risky mortgages (and raised interest rates), the bank regulators could have insisted on higher capital requirements, etc. – because they lacked the motivation to use them in the face of overwhelming opposition from the banking industry and, probably, the power to resist Congress and the administration, whichever party controlled them.

As Ezra Klein puts it: “When evaluating a particular financial regulation proposal, ask yourself this question: Would these regulations have worked if Alan Greenspan hadn’t wanted to implement them?” That’s a good question, although it’s a bit unfair: if you posit a regulator who doesn’t believe in regulation, then virtually any regulatory scheme is bound to fail. This is why Fox and Klein argue for ironclad rules that don’t leave room for discretion. In addition, though, I think we also need to think about how to make sure we get regulators who are not cheerleaders for or captives of the financial services industry.

By James Kwak

Questions about Doctors

Greg Mankiw posts data showing that doctors in the U.S. make much more than doctors elsewhere. From a 1999 paper by Uwe Reinhardt, among others:

As a dollar amount, U.S. per capita spending for physician services was the highest in the OECD in 1999: $988, compared with an OECD median of $342. . . .

In 1996, the most recent year for which data are available for multiple countries, the average U.S. physician income was $199,000. The comparable OECD median physician income was $70,324.* The ratio of the average income of U.S. physicians to average employee compensation for the United States as a whole was about 5.5. Germany’s was the next highest, at only 3.4; Canada, 3.2; Australia, 2.2; Switzerland, 2.1; France, 1.9; Sweden, 1.5; and the United Kingdom, 1.4.

Continue reading “Questions about Doctors” →

Hedge Funds Make A Political Mistake

The political flavor of the month is to push back against even the Obama adminstration’s mildly reformist inclinations on finance (e.g., Peter Weinberg in today’s FT is a nice example).  And, of course, once you hire a lobbyist, he or she tells you that “winning” means stirring up Congress in favor of the status quo.  Measured in these terms, the hedge fund industry has had a string of notable recent victories effectively preventing tighter regulation.

Advocates have a point, of course, when they argue that big banks rather than hedge funds were primarily responsible for crisis.  But this misses where we are in the long-cycle of regulation/deregulation.  Look at this picture (source: WSJ; more on Ariell Reshef’s webpage). Continue reading “Hedge Funds Make A Political Mistake” →

Conventional Wisdom About Credit Default Swaps

I originally published this post over at The Hearing on Monday, but it feels more like a Baseline Scenario kind of post.

One part of the Obama Administration’s financial reform plan is tighter regulation of credit default swaps – those previously unregulated derivatives that brought down AIG and nearly the entire financial sector with it. One of the problems with AIG was that its regulators were apparently unaware that it had amassed a huge, one-sided portfolio of credit default swaps that amounted to a massive bet the economy would do just fine; another problem was that, because credit default swaps were “over the counter,” custom transactions between individual private parties, they created a large amount of counterparty risk – the risk that the party you were trading with might not be there to honor the trade.

In response, the administration proposes to “require clearing of all standardized OTC derivatives through regulated central counterparties (CCPs).” In addition, “regulated financial institutions should be encouraged to make greater use of regulated exchange-traded derivatives.” Major players in the market will also be subject to conservative capital requirements (making sure they have enough money in case their trades go badly) and reporting requirements. These provisions aim to increase regulatory oversight and minimize the chances that a derivatives dealer will fail and take its counterparties down with it, and as far as they go they are a good thing.

However, there is one potential loophole that, according to UCLA law professor Lynn Stout (on Friday’s Morning Edition), is “potentially big enough to put the state of Texas into.” The loophole is that “customized bilateral OTC derivatives transactions” would remain out of the reach of both exchanges and CCPs.

Continue reading “Conventional Wisdom About Credit Default Swaps” →

It Takes A Citi

Washington-based policy tinkerers  seem increasingly drawn to the idea that greater reliance on market information can forestall future problems – e.g., providing input into an early warning system that can be acted upon by a “macroprudential system regulator”.  And while leading critics of the administration’s proposed approach to rating agencies make some good points, they also seem to think that the market tells us when big trouble is brewing.

The history of Citigroup’s credit default swap (CDS) spread is not so encouraging. Continue reading “It Takes A Citi” →

Goldman’s Best Year Ever?

A reader pointed me to this story in The Guardian citing Goldman insiders saying this could be the investment bank’s most profitable year ever.

Staff in London were briefed last week on the banking and securities company’s prospects and told they could look forward to bumper bonuses if, as predicted, it completed its most profitable year ever. Figures next month detailing the firm’s second-quarter earnings are expected to show a further jump in profits.

A couple months back I said that it would be unlikely for the banks to repeat their spectacular first-quarter results in the second quarter, because it depended on fixed-income revenues being even higher than during the peak of the boom. It looks like I was wrong.

Like most things, there are two ways to interpret this. For the optimists, if some of the big banks are making big profits, that gets us back to a normally functioning financial sector sooner and reduces the chance that they will face a panic in the short term. As many people have pointed out, including us, this is basically the Obama Administration’s strategy.

For the pessimists, the phoenix-rising-from-the-ashes profitability of the big banks is a direct result of massive government aid in the form of cheap money, liquidity programs, and let’s not forget the bailout of AIG; it’s also the result of reduced competition resulting from the consolidation of Bear Stearns into JPMorgan, the failure of Lehman, and the weakened state of Citigroup and Bank of America/Merrill. So the government bought a partially healthy banking sector (the big question is what Citi and B of A will report) with public funds, the few winners (Goldman, JPMorgan) are more powerful than ever, and the government is hoping to get an anemic regulatory reform package through Congress in exchange.

By James Kwak

Modeling Everything, Public Plan Edition

Ezra Klein and Paul Krugman are both highlighting Nate Silver’s analysis of campaign contributions and the public health plan option. The quick summary? Campaign contributions matter – in this case, by about nine senators. Mainly I’m impressed and encouraged that people can use publicly-available data to quickly whip together plausible models answering questions that otherwise we would all just pontificate about.

Coincidentally, I was getting my car inspected this morning and picked up an October 2008 copy of New York Magazine in the waiting room, which had an article about . . . Nate Silver. The article includes a picture of the presidential electoral map as Silver predicted on October 8, in which he called every state correctly except Missouri (which, remember, took a few weeks to figure out whom it had voted for). Most of the article is about how the empirical approach to baseball turns out to be useful in other areas, like politics and public policy.

Update: Mark Thoma points out this counterargument by Brendan Nyhan (who long ago wrote a blog with the brother of one of the best developers at my company). Nyhan says “studies have typically found minimal effects of campaign contributions on roll call votes in Congress,” and cites a Journal of Economic Perspectives paper as backup.

OK, Nyhan may be right. But he may not be.

Continue reading “Modeling Everything, Public Plan Edition” →

What Next For The Global Crisis?

Slides for speech to World Bank conference (Lessons from East Asia and the Global Financial Crisis), Tuesday in Seoul (1pm local time), are attached.  This post summarizes my main points.

There are two views of the global financial crisis and – more importantly – of what comes next.  The first is shared by almost all officials and underpins government thinking in the United States, the remainder of the G7, Western Europe, and beyond.  The second is quite unofficial – no government official has yet been found anywhere near this position.  Yet versions of this unofficial view have a great deal of support and may even be gaining traction over time as events unfold. Continue reading “What Next For The Global Crisis?” →