Institutional Investor
In 1990, Harvard Business School professor Michael Jensen co-wrote an article making the then-bold claim that CEO compensation should be tied to stock price performance. The point, Jensen and his co-author argued, was to better align incentives and ensure that corporations were able to attract “the best and brightest individuals to careers in corporate management.”
In short: Pay up, or lose out.
At the time, Jensen was little known outside academic circles. But — perhaps unsurprisingly — his advocacy for a new model of CEO pay quickly made him a well-known name in business academia and corporate boardrooms, sought after for advice and affirmation. Soon, “aligning incentives” exploded across corporate America.
The results were staggering. According to data from the Stanford Graduate School of Business, average CEO compensation at the largest firms rose from $1.8 million per year in the 1980s — roughly in line with the previous 45 years — to $4.1 million in the 1990s. By the early 2000s, it had risen to $9.2 million. And those numbers are after adjusting for inflation. The majority of that growth came in the form of options and stock grants, just as Jensen had recommended.
But what if Jensen was wrong?
What if CEOs don’t play much of a role in driving stock price performance, and the “aligned incentives” of equity incentive pay don’t change behavior in any way that benefits shareholders?
What if the “best and brightest” — those executives with the most dazzling CVs and track records — don’t perform any better than less credentialed executives?
And what if Jensen’s philosophy produced better outcomes for CEOs and business school graduates — including those from his own school — but not better outcomes for investors or society at large?
Over the past year, we set out to answer these questions. We created a database of approximately 8,500 CEOs and their characteristics, each individually mapped to their respective companies for the duration of their tenure, and pulled company fundamentals from Compustat, stock returns from the University of Chicago's Center for Research in Security Prices (CRSP), CEO tenure and education from BoardEx, and long-form CEO biographies from Capital IQ. We then ran a battery of tests on the new data set, looking for correlation, persistence, and predictive power. We wanted to answer two sets of questions:
Do CEO characteristics predict stock price performance? Do CEOs with MBAs perform better than CEOs without MBAs? Do CEOs with MBAs from the best MBA programs outperform other CEOs? Do CEOs who worked at top consulting firms and investment banks outperform other CEOs? More broadly, are the “best and brightest” better at running companies?
Is CEO performance persistent? If someone was a successful CEO of one company and took over as CEO of a different company, does his or her performance at the first company predict performance at the second company? If a CEO does a good job for three years, does that predict stock price performance over the subsequent three years? More broadly, are some CEOs better than others at driving share price performance?
This research has important implications for investing. There is broad consensus among investors that one should seek out “well-managed” companies. And what better way to assess the quality of management than to examine the chief executive’s resume and record?
This approach makes intuitive sense. Surely it is better to invest in the star CEO who has a record of stunning returns than a schmuck who has underperformed the S&P. Better still if the star was forged in the crucible of Harvard Business School. There is a big market for books about these genius CEOs and how they achieved their success — and what lessons corporate executives and investors should take away from the histories of “great men.”
The siren songs of credentialism and tales of corporate "great men" are seductive. It is the pedagogy by which most college students learn and explain history. But if the data shows that CEO performance isn’t persistent, or if the resume characteristics we commonly associate with quality don’t, in fact, predict performance, are investors making a mistake in spending so much time on management quality?
Do MBAs Make Better CEOs?
In the 1980s, Jensen noticed a big shift in the career choices of Harvard MBAs. In the late 1970s, about 55 percent of graduates chose careers in corporate management, but by the late 1980s, only 30 percent were making this choice.
Jensen was concerned that this meant America’s “best and brightest” leaders were not going to be running America’s largest companies — and that corporate America needed to increase CEO compensation to lure more Harvard MBAs into corporate management careers.
A central premise of business education is that leadership and management can be taught in the classroom. Harvard Business School says its mission is “to educate leaders who make a difference in the world,” where a difference is defined as creating “real value for society.” And so, Jensen’s logic makes sense: Harvard attracts the very best students and, presumably, is good at educating them to be better business leaders, so corporate America should want more Harvard graduates running companies — and this logic should extend to MBA programs beyond just Harvard.
But regression results suggest a different result entirely. We tagged CEOs by the MBA programs they attended, formed monthly portfolios of companies broken down by the business school each CEO attended, and compared the returns of these portfolios to the broader market.
We found no statistically significant alphas — despite testing every possible school with a reasonable sample size. MBA programs simply do not produce CEOs who are better at running companies, if performance is measured by stock price return.
We ran similar regressions controlling for industry and found that — even after controlling for industry — elite MBAs did not produce positive statistically significant alpha. Elite MBAs did perform relatively well as CEOs in healthcare and consumer staples, but relatively poorly in energy and materials businesses, though those results were not statistically significant. Our study is not the only one to come to this conclusion. A study by economists at the University of Hawaii asked similar questions and found that firm performance is not predicted by the educational background of the CEOs.
The perceived quality of each institution appeared to have no correlation with stock price returns. Northwestern led with an alpha of 0.58 percent per month. Stanford eked out a barely positive alpha of 0.03 percent per month. Harvard and Wharton had negative alphas of -0.15 percent and -0.19 percent, respectively, per month. While these rankings likely occurred by sheer chance, they do nothing to support Jensen’s thesis.
Lastly, we looked at how CEOs who had previously worked at investment banks and elite consulting firms performed. If Jensen’s core thesis were true, we would expect CEOs with these elite credentials to outperform the market.
We thus formed monthly portfolios for bankers and consultants. As we did with MBAs, we then ran industry-controlled Fama-French three-factor regressions. The result: Neither bankers nor consultants produced statistically significant alphas. We also back-tested portfolios designed to favor ex-bankers and consultants and found no significant edge (though consultants had a statistically insignificant edge on bankers).
This suggests that the “best and brightest” do not have a statistically significant edge when it comes to managing public companies. An elite pedigree — the type of pedigree favored by headhunters and corporate boards — is not predictive of superior management. One of the central rationales for Jensen’s campaign (increasing CEO pay by tying it to share price performance) appears, in retrospect, to have little empirical support. These credentials, however, are significantly overrepresented in the CEO biography database. The elite credentials thus benefit the individual, but there is little evidence that these credentials benefit shareholders.
It’s unclear precisely why the evidence suggests that highly credentialed CEOs from our most elite MBA programs and their funnel careers, like banking and consulting, appear to add no measurable value to shareholders. However, we found wisdom in a saying of the oldest living CEO, a 100-year-old billionaire from Singapore who still goes to work every day to mentor his son in leading the firm. His son, Teo Siong Seng, said, “My father taught me one thing: In Chinese, it’s ‘yi de fu ren’ — that means you want people to obey you not because of your authority, not because of your power, or because you are fierce, but more because of your integrity, your quality, that people actually respect you and listen to you.”
Bloomberg shows that “there is no education data available” for the 100-year-old CEO, Chang Yun Chung, so we cannot vet his educational credentials — but we suspect he did not obtain an MBA.