S&P500 Operating Margin SLC MANAGEMENT; SOURCE BLOOMBERG
Bigger Companies, Fewer Competitors
In the last two decades there has been widespread consolidation within industries. In their assessment of public markets, Jonathan Tepper and Denise Hearn’s book, The Myth of Capitalism, reports the extent of industry concentration. Industries such as banking, telecommunications, pharmaceuticals, airlines and social media, to name a few, are dominated by a handful of major brands.
Meanwhile, over this same period, regulations have increased. That builds a barrier to entry to smaller players in many industries, as the complexity requires significant resources to navigate and optimize the competitive landscape.
Similar research from Gustavo Grullon, Yelena Larkin and Roni Michaely confirmed that significant concentration occurred for more than three-quarters of U.S. industries. In fact, in many industries there are just four dominant players.
Unsurprisingly, they found that companies within highly concentrated industries realized higher profits and a greater return on assets. Expanding profit margins was the key driver, as asset utilization and productivity didn’t change that much. Their research also shows that mergers and acquisitions in the same industry, tended to increase profits.
In explaining this shift to more rampant concentration, the authors highlight that since the early 2000s, the number of antitrust enforcements declined, creating a supportive environment for industry consolidation.
They also suggest that technology innovation is likely creating barriers to entry. Over the last several decades, the investment in tangible assets relative to output has remained flat while non-tangible asset investment has doubled.
In line with that, Grullon, Larkin and Michaely found that patents are concentrated among the larger companies. And this patent concentration is highly correlated with the resulting share of sales. Therefore, sophisticated technology seems to be driving value and scale, which new entrants struggle to match.
IPO’s Have Dropped
At the same time, over the last 20 years, the number of public companies have been cut in half.