The NFL misread the cardinal rule of economics

The world's richest league thought it had a demand problem. Turns out, the shortfall was supply.

Welcome back to Club Sportico, where we break down the intersection of sports and money—with an extra bit of humor and opinion. Today, we talk about NFL owners backing into more billions.

Last summer, following years of internal debate, the NFL joined the other major U.S. leagues in allowing private equity funds to invest in teams. The thinking was simp…