MEC 110

Economics, Finance, MEC 110

Modigliani-Miller Theorem of Capital Structure: Explained

The Modigliani-Miller (MM) theorem, introduced by Franco Modigliani and Merton Miller in 1958, is a cornerstone of modern corporate finance theory. It asserts that in perfect markets, a firm’s capital structure—whether financed through debt or equity—does not affect its overall value. This theorem has deeply influenced the way companies think about financing decisions and the cost of capital.

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