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Title:A tale of two debt crises: a stochastic optimal control analysis PDF Logo
Authors:Stein, Jerome L.
Issue Date:2010
Citation:[Journal:] Economics: The Open-Access, Open-Assessment E-Journal [Volume:] 4 [Issue:] 2010-3 [Pages:] 1-24 [DOI/URN:] doi:10.5018/economics-ejournal.ja.2010-3
Series/Report no.:Economics 2010-3
Abstract:Creditors, banks and bank regulators should evaluate whether a borrower is likely to default. I apply several techniques in the extensive mathematical literature of stochastic optimal control/dynamic programming to derive an optimal debt in an environment where there are risks on both the asset and liabilities sides. The vulnerability of the borrowing firm to shocks from either the return to capital, the interest rate or capital gain, increases in proportion to the difference between the Actual and Optimal debt ratio, called the excess debt. As the debt ratio exceeds the optimum, default becomes ever more likely. This paper is 'A Tale of Two Crises' because the same analysis is applied to the agricultural debt crisis of the 1980s and to the subprime mortgage crisis of 2007. A measure of excess debt is derived, and we show that it is an early warning signal of a crisis in both cases
Subjects:Optimization
banking
stochastic optimal control
agriculture debt crisis
subprime mortgage crisis
JEL:C61
D81
D91
D92
Persistent Identifier of the first edition:doi:10.5018/economics-ejournal.ja.2010-3
URL of the first edition:http://www.economics-ejournal.org/economics/journalarticles/2010-3
Creative Commons License:http://creativecommons.org/licenses/by-nc/2.0/de/deed.en
Document Type:Article
Appears in Collections:Economics: The Open-Access, Open-Assessment E-Journal - Journal Articles

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