The importance of industry classification in estimating concentration ratios
We compare different industry concentration ratios based on the Standard Industry Classification (SIC) system to ratios based on the Global Industry Classification Standard (GICS) system and demonstrate through the analysis of industry markups that GICS-based measures are better proxies for the actual industry concentration than SIC-based measures.
If you experience problems downloading a file, check if you have the proper application to view it first. In case of further problems read the IDEAS help page. Note that these files are not on the IDEAS site. Please be patient as the files may be large.
As the access to this document is restricted, you may want to look for a different version under "Related research" (further below) or search for a different version of it.
References listed on IDEAS
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
- repec:oup:qjecon:v:120:y:2005:i:2:p:701-728 is not listed on IDEAS
- Jean Tirole, 1988. "The Theory of Industrial Organization," MIT Press Books, The MIT Press, edition 1, volume 1, number 0262200716, June.
- Kathleen M. Kahle & Ralph A. Walkling, . "The Impact of Industry Classifications on Financial Research," Research in Financial Economics 9607, Ohio State University.
- Ashiq Ali & Sandy Klasa & Eric Yeung, 2009. "The Limitations of Industry Concentration Measures Constructed with Compustat Data: Implications for Finance Research," Review of Financial Studies, Society for Financial Studies, vol. 22(10), pages 3839-3871, October.
- Hennessy, David A. & Lapan, Harvey E., 2006.
"When Different Market Concentration Indices Agree,"
Staff General Research Papers
12550, Iowa State University, Department of Economics.
- Kewei Hou & David T. Robinson, 2006. "Industry Concentration and Average Stock Returns," Journal of Finance, American Finance Association, vol. 61(4), pages 1927-1956, 08.
- Howitt, Peter & Griffith, Rachel & Aghion, Philippe & Blundell, Richard & Bloom, Nick, 2005.
"Competition and Innovation: An Inverted-U Relationship,"
4481507, Harvard University Department of Economics.
- Philippe Aghion & Nick Bloom & Richard Blundell & Rachel Griffith & Peter Howitt, 2005. "Competition and Innovation: an Inverted-U Relationship," The Quarterly Journal of Economics, Oxford University Press, vol. 120(2), pages 701-728.
- Philippe Aghion & Nicholas Bloom & Richard Blundell & Rachel Griffith & Peter Howitt, 2002. "Competition and Innovation: An Inverted U Relationship," NBER Working Papers 9269, National Bureau of Economic Research, Inc.
- Philippe Aghion & Nicholas Bloom & Richard Blundell & Rachel Griffith & Peter Howitt, 2002. "Competition and innovation: an inverted U relationship," IFS Working Papers W02/04, Institute for Fiscal Studies.
- repec:tpr:qjecon:v:120:y:2005:i:2:p:701-728 is not listed on IDEAS
- Sanjeev Bhojraj & Charles M. C. Lee & Derek K. Oler, 2003. "What's My Line? A Comparison of Industry Classification Schemes for Capital Market Research," Journal of Accounting Research, Wiley Blackwell, vol. 41(5), pages 745-774, December.
- Kahle, Kathleen M. & Walkling, Ralph A., 1996. "The Impact of Industry Classifications on Financial Research," Journal of Financial and Quantitative Analysis, Cambridge University Press, vol. 31(03), pages 309-335, September.
- Heather E. Tookes, 2008. "Information, Trading, and Product Market Interactions: Cross-sectional Implications of Informed Trading," Journal of Finance, American Finance Association, vol. 63(1), pages 379-413, 02.
- DeFond, Mark L. & Park, Chul W., 1999. "The effect of competition on CEO turnover1," Journal of Accounting and Economics, Elsevier, vol. 27(1), pages 35-56, February.
When requesting a correction, please mention this item's handle: RePEc:eee:ecolet:v:114:y:2012:i:2:p:224-227. See general information about how to correct material in RePEc.
For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Zhang, Lei)
If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.
If references are entirely missing, you can add them using this form.
If the full references list an item that is present in RePEc, but the system did not link to it, you can help with this form.
If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your profile, as there may be some citations waiting for confirmation.
Please note that corrections may take a couple of weeks to filter through the various RePEc services.