Modigliani and Modigliani (M2 )

The Modigliani-Miller theorem is a fundamental principle in corporate finance that states that, under certain assumptions, the value of a firm is independent of its capital structure. In other words, the theorem suggests that the way a company finances its operations, whether through debt or equity, does not affect its overall value in a perfect and efficient market.

The Modigliani-Miller theorem is based on the following key assumptions:

1. Perfect capital markets: The theorem assumes the absence of taxes, transaction costs, and information asymmetry, meaning that all investors have access to the same information and can freely buy or sell securities without any constraints.
2. Homogeneous expectations: It assumes that all investors have the same expectations regarding the future cash flows and risks associated with the firm.
3. No bankruptcy costs: The theorem disregards any costs associated with financial distress or bankruptcy.

Under these assumptions, the Modigliani-Miller theorem provides powerful insights into the relationship between a firm’s value and its financing decisions. It suggests that the market value of a company is determined by its underlying business operations and the expected future cash flows, rather than the specific mix of debt and equity used to finance those operations.