2011Research journal of economics, business and ICTRequires access

From Modigliani–Miller To General Theory Of Capital Cost And Capital Structure Of The Company

Peter Brusov, Tatiana Filatova, Natali Orehova, Pavel Brusov, Nastia Brusova

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Abstract

One of the serious limitations of the Modigliani–Miller theory is the suggestion about perpetuity of the companies. We lift up this limitation and show, that the accounting of the finite lifetime of the company leads to change of the equity cost, k  as  well  as  of the  weighted  average  cost  of  capital, WACC,  in  the  presence  of  corporative  taxes. We  give  a rigorous  proof  of  the  Brusov–Filatova  theorem,  that  in  the absence  of  corporative  taxes  cost  of  company  equity, , as well as its weighted average cost, WACC, do not depend on  the  lifetime  or  age  of  the  company.  We  show  that perpetuity Modigliani­Miller theory underestimates the equity cost ,  as  well  as  the  weighted  average  cost  of  capital, WACC,  and  thus  underestimates  the  financial  risks,  which could  become  one  of  the  implicit  reasons  for  the  financial crisis

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What this paper is about

One of the serious limitations of the Modigliani–Miller theory is the suggestion about perpetuity of the companies. We lift up this limitation and show, that the accounting of the finite lifetime of the company leads to change of the equity cost, k  as  well  as  of the  weighted  average  cost  of  capital, WACC,  in  the  presence  of  corporative  taxes. We  give  a rigorous  proof  of  the  Brusov–Filatova  theorem,  that  in  the absence  of  corporative  taxes  cost  of  company  equity, , as well as its weighted average cost, WACC, do not depend on  the  lifetime  or  age  of  the  company.  We  show  that perpetuity Modigliani­Miller theory underestimates the equity cost ,  as  well  as  the  weighted  average  cost  of  capital, WACC,  and  thus  underestimates  the  financial  risks,  which could  become  one  of  the  implicit  reasons  for  the  financial crisis

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Available abstract

One of the serious limitations of the Modigliani–Miller theory is the suggestion about perpetuity of the companies. We lift up this limitation and show, that the accounting of the finite lifetime of the company leads to change of the equity cost, k  as  well  as  of the  weighted  average  cost  of  capital, WACC,  in  the  presence  of  corporative  taxes. We  give  a rigorous  proof  of  the  Brusov–Filatova  theorem,  that  in  the absence  of  corporative  taxes  cost  of  company  equity, , as well as its weighted average cost, WACC, do not depend on  the  lifetime  or  age  of  the  company.  We  show  that perpetuity Modigliani­Miller theory underestimates the equity cost ,  as  well  as  the  weighted  average  cost  of  capital, WACC,  and  thus  underestimates  the  financial  risks,  which could  become  one  of  the  implicit  reasons  for  the  financial crisis

Key concepts: Weighted average cost of capital, Perpetuity, Cost of capital, Cost of equity, Economics, Miller, Capital structure, Financial economics

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