Abstract

http://ssrn.com/abstract=1025864
 
 

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Country v. Sector Effects in Equity Returns: Are Emerging-Market Firms Just Small Firms?


Lieven De Moor


Vrije Universiteit Brussel

Piet Sercu


FEB at KU Leuven

May 2007


Abstract:     
In the debate whether country factors are typically more variable than sector factors, sparked off by e.g. Roll (1991) and Heston and Rouwenhorst (1994), one of the few uncontested facts is that the addition of emerging markets (EMs) does boost the ratio of country-factor variance relative to industry-factor variance. Emerging markets do tend to have a higher variability but simultaneously are less related to global market and industry factors. We investigate to what extent this phenomenon can be traced to the impact of adding more small firms. We find, first, that small firms do have higher volatility, but one needs to control for country and sector affiliation before that becomes visible. We next find that small firms do have weaker sector affinity, as expected. Third, small firms unexpectedly have weaker local-market sensitivities than large firms. Facts 2 and 3 mean that adding more small firms to the database has a diversifying effect on both the sector-and country-factor variance; and while the impact on sector variance is larger, the net effect turns out to be tiny. Fourth, adding emerging markets has a very marked impact on the variance ratio. In fact, the addition of small stocks to the sample hardly dents the effect of adding EMs. Thus, the role of emerging markets cannot be reduced to just a small-firm phenomenon.

Number of Pages in PDF File: 23

Keywords: Control, Country, Database, Diversification, EMS, Expected, Factors, Firms, Impact, Industries, Industry, International stock returns, Market, Markets, Sector, Sensitivity, Small firms, Variability, Variance, World

JEL Classification: G11, G12, G15

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Date posted: October 30, 2007  

Suggested Citation

De Moor, Lieven and Sercu, Piet, Country v. Sector Effects in Equity Returns: Are Emerging-Market Firms Just Small Firms? (May 2007). Available at SSRN: http://ssrn.com/abstract=1025864 or http://dx.doi.org/10.2139/ssrn.1025864

Contact Information

Lieven De Moor (Contact Author)
Vrije Universiteit Brussel ( email )
Department of Business
Pleinlaan 2
Brussels, B-1050
Belgium
+32 498 616463 (Phone)
HOME PAGE: http://goo.gl/qntmYg
Piet M. F. A. Sercu
FEB at KU Leuven ( email )
Naamsestraat 69
Faculty of Economics and Business
Leuven, 3000
Belgium
+32 16 32 67 56 (Phone)
+32 16 32 67 32 (Fax)
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