Financial fragility with rational and irrational exuberance
This article formalizes investor rationality and irrationality, exuberance and apprehension, to consider the implications of belief formation for the fragility of an economy's financial structure. The model presented generates a financial structure with portfolio linkages that make it susceptible to contagious financial crises, despite the absence of coordination failures. Investors forecast the likelihood of loss from contagion and may shift preemptively to safer portfolios, breaking portfolio linkages in the process. The entire financial structure collapses when the last group of investors reallocates their portfolios. If some investors are irrationally exuberant, the financial structure remains intact longer. In fact, financial collapse occurs sooner when almost all investors are rationally exuberant than when they are irrationally exuberant. Additionally, a financial crisis initiated by real shocks is indistinguishable from one caused solely by the presence of rationally apprehensive investors in a fundamentally sound economy. Policies that make portfolio linkages more resilient can improve welfare.
|Date of creation:||1999|
|Date of revision:|
|Contact details of provider:|| Postal: 1 Memorial Drive, Kansas City, MO 64198-0001|
Phone: (816) 881-2254
Web page: http://www.kansascityfed.org/
More information through EDIRC
|Order Information:|| Email: |
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.:
- Roger Lagunoff & Stacey L. Schreft, 1998.
"A model of financial fragility,"
Research Working Paper
98-01, Federal Reserve Bank of Kansas City.
When requesting a correction, please mention this item's handle: RePEc:fip:fedkrw:99-01. 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: (Lu Dayrit)
If references are entirely missing, you can add them using this form.