Modigliani–Miller theorem

Modigliani–Miller theorem The Modigliani–Miller theorem (of Franco Modigliani, Merton Miller) is an influential element of economic theory; it forms the basis for modern thinking on capital structure.[1] The basic theorem states that in the absence of taxes, bankruptcy costs, agency costs, and asymmetric information, and in an efficient market, the enterprise value of a firm is unaffected by how that firm is financed.[2][unreliable source?] This is not to be confused with the value of the equity of the firm. Since the value of the firm depends neither on its dividend policy nor its decision to raise capital by issuing shares or selling debt, the Modigliani–Miller theorem is often called the capital structure irrelevance principle.

The key Modigliani–Miller theorem was developed in a world without taxes. Jedoch, if we move to a world where there are taxes, when the interest on debt is tax-deductible, and ignoring other frictions, the value of the company increases in proportion to the amount of debt used.[3] The additional value equals the total discounted value of future taxes saved by issuing debt instead of equity.

Modigliani was awarded the 1985 Nobel Prize in Economics for this and other contributions.

Miller was a professor at the University of Chicago when he was awarded the 1990 Nobel Prize in Economics, along with Harry Markowitz and William F. Sharpe, for their "work in the theory of financial economics", with Miller specifically cited for "fundamental contributions to the theory of corporate finance".

Inhalt 1 Historical background 2 Der Satz 3 Without taxes 3.1 Proposition I 3.2 Vorschlag II 4 With taxes 4.1 Proposition I 4.2 Vorschlag II 5 Anmerkungen 6 Weiterlesen 7 External links Historical background Miller and Modigliani derived and published their theorem when they were both professors at the Graduate School of Industrial Administration (GSIA) of Carnegie Mellon University. Despite limited prior experience in corporate finance, Miller and Modigliani were assigned to teach the subject to current business students. Finding the published material on the topic lacking, the professors created the theorem based on their own research[Zitat benötigt]. The result of this was the article in the American Economic Review and what has later been known as the M&M theorem.

Miller and Modigliani published a number of follow-up papers discussing some of these issues. The theorem was first proposed by F. Modigliani and M. Miller in 1958.

The theorem This section does not cite any sources. Please help improve this section by adding citations to reliable sources. Nicht bezogenes Material kann angefochten und entfernt werden. (Marsch 2022) (Erfahren Sie, wie und wann Sie diese Vorlagennachricht entfernen können) Consider two firms which are identical except for their financial structures. The first (Firm U) is unlevered: das ist, it is financed by equity only. Das andere (Firm L) is levered: it is financed partly by equity, and partly by debt. The Modigliani–Miller theorem states that the enterprise value of the two firms is the same. Enterprise value encompasses claims by both creditors and shareholders, and is not to be confused with the value of the equity of the firm.

The operational justification of the theorem can be visualized using the working of arbitrage. Considering there are two firms in a perfect capital market: both the firms are identical in all aspects except, one of the firms employ debt in its capital structure while the other don't. Investors of the firm which has higher overall value can sell their stake and buy the stake in the firm whose value is lower. They will be able to earn the same return at a lower capital outlay and hence, lower perceived risk. Due to arbitrage, there would be an excess selling of the stake in the higher value firm bringing its price down, meanwhile for the lower value firm, due to the increased buying the price of its stake will rise. This corrects the market distortion, created by unequal risk amount and ultimately the value of both the firms will be leveled.

According to MM Hypothesis, the value of levered firm can never be higher than that of the unlevered firm. The two must be equal. There is neither an advantage nor a disadvantage in using debt in a firm's capital structure.

Without taxes Proposition I {Anzeigestil V_{U}=V_{L},} wo {Anzeigestil V_{U}} is the value of an unlevered firm = price of buying a firm composed only of equity, und {Anzeigestil V_{L}} is the value of a levered firm = price of buying a firm that is composed of some mix of debt and equity. Another word for levered is geared, which has the same meaning.[4] To see why this should be true, suppose an investor is considering buying one of the two firms, U or L. Instead of purchasing the shares of the levered firm L, he could purchase the shares of firm U and borrow the same amount of money B that firm L does. The eventual returns to either of these investments would be the same. Therefore the price of L must be the same as the price of U minus the money borrowed B, which is the value of L's debt.

This discussion also clarifies the role of some of the theorem's assumptions. We have implicitly assumed that the investor's cost of borrowing money is the same as that of the firm, which need not be true in the presence of asymmetric information, in the absence of efficient markets, or if the investor has a different risk profile than the firm.

Proposition II Proposition II with risky debt. As leverage (D/E) increases, the WACC (k0) stays constant. {Anzeigestil r_{E}=r_{0}+{frac {D}{E}}(r_{0}-r_{D})} wo {Anzeigestil r_{E}} is the expected rate of return on equity of a leveraged firm, or cost of equity. {Anzeigestil r_{0}} is the company cost of equity capital with no leverage (unlevered cost of equity, or return on assets with D/E = 0). {Anzeigestil r_{D}} is the expected rate of return on borrowings, or cost of debt. {Anzeigestil {frac {D}{E}}} is the debt-to-equity ratio.

A higher debt-to-equity ratio leads to a higher required return on equity, because of the higher risk involved for equity-holders in a company with debt. The formula is derived from the theory of weighted average cost of capital (WACC).

These propositions are true under the following assumptions: no transaction costs exist, and individuals and corporations borrow at the same rates.

These results might seem irrelevant (after all, none of the conditions are met in the real world), but the theorem is still taught and studied because it tells something very important. Das ist, capital structure matters precisely because one or more of these assumptions is violated. It tells where to look for determinants of optimal capital structure and how those factors might affect optimal capital structure.

With taxes Proposition I {Anzeigestil V_{L}=V_{U}+T_{C}D,} wo {Anzeigestil V_{L}} is the value of a levered firm. {Anzeigestil V_{U}} is the value of an unlevered firm. {Anzeigestil T_{C}D} is the tax rate ( {Anzeigestil T_{C}} ) x the value of debt (D)" Derivation of {Anzeigestil T_{C}D} - Amount of Annual Interest= Debt x Interest Rate Annual Tax Shield= Debt x Interest Rate x Tax Rate Capitalisation Value (Perpetual Firm) = (Debt × Interest Rate x Tax Rate) ÷ Interest Rate the term {Anzeigestil T_{C}D} assumes debt is perpetual This means that there are advantages for firms to be levered, since corporations can deduct interest payments. Therefore leverage lowers tax payments. Dividend payments are non-deductible.

Vorschlag II {Anzeigestil r_{E}=r_{0}+{frac {D}{E}}(r_{0}-r_{D})(1-T_{C})} wo: {Anzeigestil r_{E}} is the required rate of return on equity, or cost of levered equity = unlevered equity + financing premium. {Anzeigestil r_{0}} is the company cost of equity capital with no leverage (unlevered cost of equity, or return on assets with D/E = 0). {Anzeigestil r_{D}} is the required rate of return on borrowings, or cost of debt. {Anzeigestil {D}/{E}} is the debt-to-equity ratio. {Anzeigestil T_{c}} is the tax rate.

The same relationship as earlier described stating that the cost of equity rises with leverage, because the risk to equity rises, still holds. The formula, jedoch, has implications for the difference with the WACC. Their second attempt on capital structure included taxes has identified that as the level of gearing increases by replacing equity with cheap debt the level of the WACC drops and an optimal capital structure does indeed exist at a point where debt is 100%.

The following assumptions are made in the propositions with taxes: corporations are taxed at the rate {Anzeigestil T_{C}} on earnings after interest, no transaction costs exist, and individuals and corporations borrow at the same rate. Notes ^ Titman, Sheridan (2002). "The Modigliani and Miller Theorem and the Integration of Financial Markets". Financial Management. 31 (1): 101–115. doi:10.2307/3666323. JSTOR 3666323. ^ MIT Sloan Lecture Notes, Finance Theory II, Dirk Jenter, 2003 ^ Fernandes, Nuno. Finance for Executives: A Practical Guide for Managers. NPV Publishing, 2014, p. 82. ^ Arnold G. (2007) Further reading This article includes a list of general references, aber es fehlen genügend entsprechende Inline-Zitate. Bitte helfen Sie mit, diesen Artikel zu verbessern, indem Sie genauere Zitate einfügen. (Marsch 2009) (Erfahren Sie, wie und wann Sie diese Vorlagennachricht entfernen können) Brealey, Richard A.; Myers, Stewart C. (2008) [1981]. Principles of Corporate Finance (9Das D.). Boston: McGraw-Hill/Irwin. ISBN 978-0-07-340510-0. Stewart, G. Bennett (1991). The Quest for Value: The EVA management guide. New York: HarperBusiness. ISBN 978-0-88730-418-7. Modigliani, F.; Miller, M. (1958). "The Cost of Capital, Corporation Finance and the Theory of Investment". American Economic Review. 48 (3): 261–297. JSTOR 1809766. Modigliani, F.; Miller, M. (1963). "Corporate income taxes and the cost of capital: a correction". American Economic Review. 53 (3): 433–443. JSTOR 1809167. Miles, J.; Ezzell, J. (1980). "The weighted average cost of capital, perfect capital markets and project life: a clarification". Journal of Financial and Quantitative Analysis. 15 (3): 719–730. CiteSeerX doi:10.2307/2330405. JSTOR 2330405. Sargent, Thomas J. (1987). Macroeconomic Theory (Zweite Aufl.). London: Akademische Presse. pp. 157–162. ISBN 978-0-12-619751-8. Sethi, S.P.; Derzko, N.A.; Lehoczky, J.P. (1991). "A Stochastic Extension of the Miller-Modigliani Framework". Mathematical Finance. 1 (4): 57–76. doi:10.1111/j.1467-9965.1991.tb00019.x. Sethi, S.P. (1996). "When Does the Share Price Equal the Present Value of Future Dividends?". Economic Theory. 8: 307–319. External links Ruben D Cohen: An Implication of the Modigliani-Miller Capital Structuring Theorems on the Relation between Equity and Debt hide vte Corporate finance and investment banking Capital structure Convertible debtExchangeable debtMezzanine debtPari passuPreferred equitySecond lien debtSenior debtSenior secured debtShareholder loanStockSubordinated debtWarrant Transactions (terms/conditions) Equity offerings At-the-market offeringBook buildingBookrunnerBought dealBought out dealCorporate spin-offDirect public offeringEquity carve-outFollow-on offeringGreenshoe ReverseInitial public offeringPre-IPOPrivate placementPublic offeringRights issueSeasoned equity offeringSecondary market offeringUnderwriting Mergers and acquisitions Buy sideControl premiumDemergerDivestmentDrag-along rightManagement due diligenceManagerial entrenchmentMandatory offerMinority discountPitch bookPre-emption rightProxy fightPost-merger integrationSell sideShareholder rights planSpecial-purpose entitySpecial situationSqueeze-outStaggered board of directorsStock swapSuper-majority amendmentSynergyTag-along rightTakeover ReverseTender offer Leverage Debt restructuringDebtor-in-possession financingFinancial sponsorLeveraged buyoutLeveraged recapitalizationHigh-yield debtPrivate equityProject finance Valuation Accretion/dilution analysisAdjusted present valueAssociate companyBusiness valuationConglomerate discountCost of capital Weighted averageDiscounted cash flowEconomic value addedEnterprise valueFairness opinionFinancial modelingFree cash flow Free cash flow to equityMarket value addedMinority interestMismarkingModigliani–Miller theoremNet present valuePure playReal optionsResidual incomeStock valuationSum-of-the-parts analysisTax shieldTerminal valueValuation using multiples List of investment banks Outline of finance Categories: Capital (economics)Economics theoremsFinancial economics

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