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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 & M. Dolores Robles, 2015. "The Risk–Return Binomial After Rating Changes," Economic Notes, Banca Monte dei Paschi di Siena SpA, vol. 44(2), pages 249-274, July.
    2. 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.
    3. 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.
    4. Pandej Chintrakarn & Sirimon Treepongkaruna & Pornsit Jiraporn & Sang Mook Lee, 2020. "Do LGBT-Supportive Corporate Policies Improve Credit Ratings? An Instrumental-Variable Analysis," Journal of Business Ethics, Springer, vol. 162(1), pages 31-45, February.
    5. 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.
    6. Emawtee Bissoondoyal-Bheenick & Sirimon Treepongkaruna, 2011. "An analysis of the determinants of bank ratings: comparison across ratings agencies," Australian Journal of Management, Australian School of Business, vol. 36(3), pages 405-424, December.
    7. Bissoondoyal-Bheenick, Emawtee, 2005. "An analysis of the determinants of sovereign ratings," Global Finance Journal, Elsevier, vol. 15(3), pages 251-280, February.
    8. Abad, P. & Ferreras, R. & Robles, M.D., 2020. "Intra-industry transfer effects of credit risk news: Rated versus unrated rivals," The British Accounting Review, Elsevier, vol. 52(1).
    9. 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.
    10. Pilar Abad Romero & M. Dolores Robles Fernández, 2005. "Risk and returns around bond rating changes: New evidence from the Spanish Stock Market," Documentos de Trabajo del ICAE 0505, Universidad Complutense de Madrid, Facultad de Ciencias Económicas y Empresariales, Instituto Complutense de Análisis Económico.
    11. 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, June.
    12. Pilar Abad Romero & María Dolores Robles Fernández, 2012. "Credit rating agencies and unsystematic risk: Is there a linkage?," Documentos de Trabajo del ICAE 2012-17, Universidad Complutense de Madrid, Facultad de Ciencias Económicas y Empresariales, Instituto Complutense de Análisis Económico.
    13. 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.
    14. 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.
    15. 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.
    16. 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.
    17. 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.
    18. 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.

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