IDEAS home Printed from https://ideas.repec.org/a/taf/applec/v43y2011i30p4879-4890.html
   My bibliography  Save this article

Economic effects of positive credit information sharing: the case of Korea

Author

Listed:
  • Joon-Ho Hahm
  • Sangche Lee

Abstract

In many countries, in addition to negative credit information such as loan default and arrears, positive credit information is also exchanged on a voluntary and reciprocal basis. Employing optimal credit decision models of profit maximizing banks, and utilizing a unique dataset of 2 million consumer loan obligors in Korea, we investigate the economic effects of sharing positive credit information in addition to negative credit information already exchanged. We find that the discriminatory power of the credit scoring model improves significantly. We proceed to investigate the economic effects of the information gap in a competitive credit market by assuming two representative banks that differ only in the level of credit information sharing. The bank that utilizes negative information only suffers from deterioration of the borrower pool and reduced profit, as high credit risk borrowers are more concentrated on this bank due to underpricing of risks. Our finding suggests that banks have incentives to voluntarily participate in the positive information sharing mechanism, since even a small difference in discriminatory power stemming from the information gap may lead to a significant fall in profitability as the distribution of borrower quality changes endogenously due to adverse selection problems.

Suggested Citation

  • Joon-Ho Hahm & Sangche Lee, 2011. "Economic effects of positive credit information sharing: the case of Korea," Applied Economics, Taylor & Francis Journals, vol. 43(30), pages 4879-4890.
  • Handle: RePEc:taf:applec:v:43:y:2011:i:30:p:4879-4890
    DOI: 10.1080/00036846.2010.498364
    as

    Download full text from publisher

    File URL: http://www.tandfonline.com/doi/abs/10.1080/00036846.2010.498364
    Download Restriction: Access to full text is restricted to subscribers.

    As the access to this document is restricted, you may want to search for a different version of it.

    References listed on IDEAS

    as
    1. Tullio Jappelli & Marco Pagano, 2005. "Role and Effects of Credit Information Sharing," CSEF Working Papers 136, Centre for Studies in Economics and Finance (CSEF), University of Naples, Italy.
    Full references (including those not matched with items on IDEAS)

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. repec:spr:infosf:v:17:y:2015:i:2:d:10.1007_s10796-013-9411-3 is not listed on IDEAS

    More about this item

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:taf:applec:v:43:y:2011:i:30:p:4879-4890. 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: (Chris Longhurst). General contact details of provider: http://www.tandfonline.com/RAEC20 .

    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 CitEc recognized a reference but did not link an item in RePEc 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 RePEc Author Service 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.

    IDEAS is a RePEc service hosted by the Research Division of the Federal Reserve Bank of St. Louis . RePEc uses bibliographic data supplied by the respective publishers.