We introduce a new discounted cash flow model which integrates the diversification effect of multi-business firms. We face two challenges. One is examining how different degrees of diversification can affect firm value due to risk reduction, and the other is modeling segment-specific cash flows...

We survey the recent literature on corporate diversification. How does corporate diversification influence firm value? Does it create or destroy value? Until the beginning of this century, the predominant thinking among researchers and practitioners was that corporate diversification leads to an...

Standard equity valuation approaches (i.e., DDM, RIM, and DCF model) are derived under the assumption of ideal conditions, such as infinite payoffs and clean surplus accounting. Because these conditions are hardly ever met, we extend the standard approaches, based on the fundamental principle of...