IDEAS home Printed from https://ideas.repec.org/a/ids/injbaf/v2y2010i4p309-331.html
   My bibliography  Save this article

Banking and optimal capital ratio in an equilibrium model

Author

Listed:
  • Bo Larsson

Abstract

The author address the question of optimal capital ratio in banking, particularly the fact that banks' risk-weighted capital is substantially larger than the stipulated reserve requirements by the Bank of International Settlements. With a factor model for the value of entrepreneurs' projects and costly state verification as asymmetric information structure, the author shows that banks choose to hold capital reserves that are almost large enough to eliminate the risk for their depositors. The reason is that the cost of lowering the risk for the bank, up to a point, is lower than their gain from cheaper deposits. Banking risk stems from borrowers being correlated. This has been an important lesson during the ongoing financial crisis where several banks underestimated the correlation in their loan portfolios and suffered severe credit losses. This could also explain why small regional banks in Sweden often have more than twice the capital ratio of their nationwide competitors.

Suggested Citation

  • Bo Larsson, 2010. "Banking and optimal capital ratio in an equilibrium model," International Journal of Banking, Accounting and Finance, Inderscience Enterprises Ltd, vol. 2(4), pages 309-331.
  • Handle: RePEc:ids:injbaf:v:2:y:2010:i:4:p:309-331
    as

    Download full text from publisher

    File URL: http://www.inderscience.com/link.php?id=37153
    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.

    Citations

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


    Cited by:

    1. Larsson, Bo & Wijkander, Hans, 2015. "Dynamic Banking with Endogenous Risk Based Funding Cost: Value Maximization, Risk-taking, Responses to Regulation and Credit Contraction," Research Papers in Economics 2015:3, Stockholm University, Department of Economics.

    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:ids:injbaf:v:2:y:2010:i:4:p:309-331. 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: (Darren Simpson). General contact details of provider: http://www.inderscience.com/browse/index.php?journalID=277 .

    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.

    We have no references for this item. You can help adding them by using 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.