There's another Modigliani-Miller theorem about debt, which is about debt irrelevance as well.

关于负债还有另外一个MM定律,也是讲负债不相关性的

耶鲁公开课 - 金融市场课程节选

We'll be talking about the Modigliani-Miller Theorem and related issues in this lecture as well as something about the behavior of the stock market and its tendency to go through dramatic movements.

我们会讲到,MM定理,和与其相关的问题,还会讲到,股市行为和,股市戏剧性的运动趋势

耶鲁公开课 - 金融市场课程节选

Evidently the word on the Modigliani-Miller theorem hasn't gotten out to the public just yet.

FORBES: Magazine Article

This both increases the volatility of equity returns and transfers value from debt to equity in the presence of default risks but has little to do with the Modigliani-Miller theorem in which default risk plays no part.

ECONOMIST: No soft option

Merton Miller and his colleague Franco Modigliani posited their capital structure irrelevance theorem in the late 1950s, when the dollar was as good as gold at least for foreign creditors.

FORBES: Debt-Free Firms Have The Edge With Rates Going Up