At Bloomberg Noah Smith has a post that is so important it should be required reading. Here’s the meat of it:
How much of this increase in market value was due to rent extraction, or to the expectation of future rent extraction? Economists Daniel Greenwald, Martin Lettau and Sydney Ludvigson believe they have an answer: Most of it. In a recent paper, they built a model of the economy in which the value created by businesses could be arbitrarily reallocated between shareholders and workers. They found that redistribution from workers to shareholders accounted for 54% of increased stock wealth. Falling interest rates, rising investor appetites for risk and economic growth comprised the remaining 46%.
[…]
But this leaves the question of how shareholders have managed to extract increasing rent from the economy. In a healthy economy, competition should get rid of rents, because new companies will enter the market and vie for a slice of that pie, offering lower prices and higher wages until the rents mostly disappear. In some industries, like semiconductors, this still happens.
But in most industries, economists Germán Gutiérrez and Thomas Philippon believe, this process has broken down. In a new paper, they attempted to measure how much new business entry responded to the market opportunity available in an industry. Gutiérrez and Philippon used a measure called Tobin’s Q, which represents the ratio of a company’s market value to the book value of the company’s assets. When Q is high, it should mean that new competitors have an opportunity to come in and take some of the profits in that industry, thus reducing existing companies’ price premium and bringing Q down. Indeed, the authors found that this was common up until the late 1990s. But after 2000 — right around the same time that profits started to rise to unprecedented levels — the relationship broke down. High Q levels no longer seem to attract new market entrants.
The most credible explanation for this is that the companies are able to lobby their way into regulations more favorable to themselves. That’s the “crony capitalism” I complain about so much. Their main form of business investment is lobbying and the ROI is great.
What can be done about it? I think that we should be breaking up big companies just because they’re big and prohibiting large foreign companies from doing business in the U. S. outright (a frequently-encountered excuse for corporate size is to be able to compete with large foreign competitors).






