Earlier this week, I introduced the idea that the rise of indexing and ETFs, known collectively as passive investing, is damaging the market and the economy, and I started spinning out the worst-case scenario should it continue to advance, including a riskier stock market and widening income inequality. But there are other areas to be concerned about as well.
Competition is what academics worry about when they worry about passive investing. Traditionally, preserving competition was mostly about maintaining a certain number of companies in every industry. Federal antitrust laws block monopolies. But academic studies have shown recently that index funds or horizontal ownership, where the same investors own a good percentage of the shares in rival companies, can also stifle competition. Horizontal ownership has risen sharply in the past decade and a half. For a large company, the chance that at least one of its large shareholders owns shares in a rival has risen to 90%, up from just 16% in 2000. And the more horizontal ownership there is, it appears, the less competitive a company, and an industry, becomes. In 2014, two economic consultants, Jose Azar and Isabel Tacu, and Michigan economics professor Martin Schmaltz, found that in the airline industry, where common ownership had risen to 70%, prices were as much as 12% higher because of common shareholders.
But the bigger problem is not prices but innovation. If CEOs have an incentive not to compete, then they might not try all that hard to innovate, spending less on research and development. Indeed, R&D spending has slumped since the 2008 financial crisis. Late last year, a study by a New York University professor Thomas Philippon, and graduate student German Gutierrez, examined the reasons R&D spending has been weaker than expected since at least 2002 but plunged after the Great Recession. They found only three factors that at least mathematically appeared to correlate with the drop in R&D. One was an increase in index investors.
The effect on investing, and the economy in general, is immense. At roughly 20% of the market, passive investing, by Philippon and Gutierrez's calculations, at least in part, could be holding down corporate investment by $125 billion a year. If passive investing were to reach 50%, the amount could drop by $328 billion a year, which is equal to about 2% of U.S. GDP. Remember when the economy used to grow by 4%? Indexing could be a big part of the reason it no longer is.
THE VANISHING IPO
Initial public offerings have long been a cornerstone of what drives American capitalism, allowing companies to become bigger. But bankers at some of the top underwriters have expressed concerns that if the passive trend continues, IPOs could become a thing of the past. That opinion could be in part perspective: Investment bankers who sell IPOs rarely come in contact with index fund managers. Without active fund managers, IPO bankers would have no investors to market to or figure out how to price an offering. But you can imagine an IPO market that is dominated by IPO index funds. Bankers might like that ― no need to market deals because the IPO funds have to buy no matter what. Pricing, however, would most likely become a function of the amount of money in IPO index funds and their rules, and without any mechanism for rewarding the individual value of a business, there might not be many who want to do an offering.
That might already be starting. The number of IPOs has plunged recently, which is odd given that the stock market in general, and tech stocks in particular, have been hitting new highs. Usually that would result in a good IPO market. The fact that 20% of the market is now owned by indexes, perhaps drawing money away from mutual funds and other institutional investors that would put money in IPOs, could be playing a role.
And it's not just the IPO market that is being deserted. The number of public companies has been falling, too. And the general worry is about the stocks left behind. Demand is shrinking for companies that are not in an index. And as the shares of those companies stop reflecting what executives think is the value of their companies, the executives may abandon the public market, choosing to go private or get bought.
But it's not just the left-behind stocks. Even companies in index funds may soon start to believe their stock prices no longer reflect their value despite good earnings or a new product. Those companies might abandon the public market as well.
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