The Price of Free

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For over eighteen years, we have maintained the same investment discipline and the same eight criteria for stock selection. We have deliberately sought opportunity in the sectors and structures the market has decided are too complicated, too cyclical, or simply no longer fashionable. This philosophy has rarely felt more necessary or more lonely than today.

There is a 45-year-old paradox that almost no one on financial television ever mentions: the Grossman-Stiglitz Paradox. Essentially, it says that information is costly to produce. Someone has to pay for the analysts, the models, the site visits and the career risk of being wrong for a period. In return, those informed investors must earn enough gross excess return to cover their costs. If they don’t, they stop doing the work, prices drift away from fair value and markets become inefficient. Perfect efficiency is therefore impossible; there must always be some mispricing left on the table as compensation for the people who keep the scale honest.

Index funds and ETFs are the greatest free-rider scheme ever invented. They capture whatever efficiency active managers create without paying a dime for it. The more money that flows into passive vehicles, the smaller the base of active capital that has to shoulder the entire cost of price discovery.

Valentin Haddad and his co-authors have now put hard numbers on the damage. Over the past two decades, the rise of passive investing has made the demand curve for individual stocks roughly 11 % more inelastic, with another ~24 % coming from the retreat of traditional active management. Prices have become far less responsive to economic reality.

In a textbook world, active managers would simply step into the widening mispricing and restore elasticity. In the real world, they are terrified of being fired. Haddad’s model shows that active managers do respond—by trading more aggressively when surrounded by passive capital, but only enough to offset about two-thirds of the distortion. The remaining one-third festers. Career risk, quarterly benchmarking and consultant scorecards cap how far any human being is willing to deviate before the redemption notices arrive.

Michael Green takes Haddad’s math and puts it in what we feel is the correct context: when passive owns half the market, the remaining active managers would need heroic (or leveraged) skill to move prices sufficiently to be compensated for their research budgets. Most can’t or won’t. The result is a slow-motion tragedy of the commons for price discovery.

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