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Testing Beta Stationarity across Bond Rating Changes

Author

Listed:
  • Impson, C Michael
  • Karafiath, Imre
  • Glascock, John L

Abstract

In this paper we examine the relationship between bond re-ratings and changes in systematic risk. Using both time series and cross-sectional regressions, we find that upgrades are not associated with a change in beta. Across the entire sample, downgrades are associated with an increase in beta. Further the increase in beta is positively correlated with firm size. There is no evidence that movement within or across rating categories, the number of grades changed, or a change across the investment grade category have a differential impact on the change in beta. Copyright 1992 by MIT Press.

Suggested Citation

  • Impson, C Michael & Karafiath, Imre & Glascock, John L, 1992. "Testing Beta Stationarity across Bond Rating Changes," The Financial Review, Eastern Finance Association, vol. 27(4), pages 607-618, November.
  • Handle: RePEc:bla:finrev:v:27:y:1992:i:4:p:607-18
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    Cited by:

    1. Pilar Abad-Romero & M. Dolores Robles-Fernandez, 2006. "Risk and Return Around Bond Rating Changes: New Evidence From the Spanish Stock Market," Journal of Business Finance & Accounting, Wiley Blackwell, vol. 33(5-6), pages 885-908.
    2. Brooks, Robert & Faff, Robert W. & Hillier, David & Hillier, Joseph, 2004. "The national market impact of sovereign rating changes," Journal of Banking & Finance, Elsevier, vol. 28(1), pages 233-250, January.
    3. Pilar Abad Romero & Maria Dolores Robles Fernández, 2014. "The Risk-Return binomial after rating changes," Documentos de Trabajo del ICAE 2014-23, Universidad Complutense de Madrid, Facultad de Ciencias Económicas y Empresariales, Instituto Complutense de Análisis Económico.
    4. Pilar Abad-Romero & M. Robles-Fernández, 2007. "Bond rating changes and stock returns: evidence from the Spanish stock market," Spanish Economic Review, Springer;Spanish Economic Association, vol. 9(2), pages 79-103, June.
    5. Rosemarie Bröker Bone & Eduardo P Ribeiro, 2013. "Informational content of corporate ratings in a developing country: the case of Brazilian firms," Economics Bulletin, AccessEcon, vol. 33(1), pages 35-45.
    6. Richard Followill & Terrence Martell, 1997. "Bond review and rating change announcements: An examination of informational value and market efficiency," Journal of Economics and Finance, Springer;Academy of Economics and Finance, vol. 21(2), pages 75-82, June.
    7. Giovanni Ferri & Andrea Morone, 2014. "The effect of rating agencies on herd behaviour," Journal of Economic Interaction and Coordination, Springer;Society for Economic Science with Heterogeneous Interacting Agents, vol. 9(1), pages 107-127, April.
    8. Pilar Abad Romero & Mª Dolores Robles Fernández, 2003. "Contenido informativo de los cambios de Rating en el mercado de Valores Español," Documentos de Trabajo del ICAE 0304, Universidad Complutense de Madrid, Facultad de Ciencias Económicas y Empresariales, Instituto Complutense de Análisis Económico.
    9. Abad, Pilar & Robles, M. Dolores, 2014. "Credit rating agencies and idiosyncratic risk: Is there a linkage? Evidence from the Spanish Market," International Review of Economics & Finance, Elsevier, vol. 33(C), pages 152-171.
    10. Ferri, Giovanni & Lacitignola, Punziana & Lee, Jeong Yeon, 2013. "Foreign ownership and the credibility of national rating agencies: Evidence from Korea," Journal of Comparative Economics, Elsevier, vol. 41(3), pages 762-776.
    11. Chan, Pak To & Edwards, Vic & Walter, Terry, 2009. "The information content of Australian credit ratings: A comparison between subscription and non-subscription-based credit rating agencies," Economic Systems, Elsevier, vol. 33(1), pages 22-44, March.
    12. Bissoondoyal-Bheenick, Emawtee, 2005. "An analysis of the determinants of sovereign ratings," Global Finance Journal, Elsevier, vol. 15(3), pages 251-280, February.
    13. Bissoondoyal-Bheenick, Emawtee, 2004. "Rating timing differences between the two leading agencies: Standard and Poor's and Moody's," Emerging Markets Review, Elsevier, vol. 5(3), pages 361-378, September.

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