Two ideas at the heart of modern financial economics are the efficient markets hypothesis, which says that investing doesn’t work, and the Modigliani-Miller theorem, which says that corporate finance doesn’t work.1 Also there is a financial industry which is pretty much organized around ignoring those ideas. Hahaha how stupid of David Einhorn to think that he could make Apple more valuable just by issuing some preferred stock! But also how stupid of David Einhorn to think he should invest in Apple rather than a market-cap weighted index of all the companies! I mean, stock picking, so last century, just index.
Management buyouts are one place where those two efficiency hypotheses break down in obvious ways. Of course management knows more about a company’s prospects than public shareholders do, and so will be able to buy when the company is undervalued.2 And of course adding giant gobs of debt to the balance sheet, with the attendant tax benefits, will make the stock more valuable. This doesn’t always work out – managements have their own problems estimating their company’s prospects, and leverage is risky – but it’s a perfectly plausible theory.
Or so I think but I come from a corporate finance background. Neil Irwin is an economics guy so he is puzzled: Read more »









