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Why Do Firms with Diversification Discounts Have Higher Expected Returns?

38 Pages Posted: 27 Sep 2006 Last revised: 31 Jul 2008

Todd Mitton

Brigham Young University - J. Willard and Alice S. Marriott School of Management

Keith Vorkink

Brigham Young University - J. Willard and Alice S. Marriott School of Management

Date Written: July 29, 2008

Abstract

A diversified firm can trade at a discount to a matched portfolio of single-segment firms if the diversified firm has either lower expected cash flows or higher expected returns than the single-segment firms. We study whether firms with diversification discounts have higher expected returns in order to compensate investors for offering less upside potential (or skewness exposure) than focused firms. Our empirical tests support this hypothesis. First, we find that focused firms offer greater skewness exposure than diversified firms. Second, we find that diversified firms have significantly larger discounts when the diversified firm offers less skewness relative to matched single-segment firms. Finally, we find that up to 53% of the excess returns received on diversification-discount firms relative to diversification-premium firms can be explained by differences in exposure to skewness.

Keywords: Diversification discount, expected returns, skewness

JEL Classification: G32, G34, G12

Suggested Citation

Mitton, Todd and Vorkink, Keith, Why Do Firms with Diversification Discounts Have Higher Expected Returns? (July 29, 2008). Available at SSRN: https://ssrn.com/abstract=932960 or http://dx.doi.org/10.2139/ssrn.932960

Todd Mitton (Contact Author)

Brigham Young University - J. Willard and Alice S. Marriott School of Management ( email )

Provo, UT 84602
United States
801-422-1763 (Phone)

Keith Vorkink

Brigham Young University - J. Willard and Alice S. Marriott School of Management ( email )

Provo, UT 84602
United States

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