Price Flexibility and Debt Dynamics in a High Order As-Ad Model

U. of Technology, Sydney Finance and Economics Working Paper No. 109

32 Pages Posted: 5 Feb 2006

See all articles by Carl Chiarella

Carl Chiarella

University of Technology, Sydney - UTS Business School, Finance Discipline Group

Peter Flaschel

Bielefeld University - Department of Business Administration and Economics

Willi Semmler

The New School - Department of Economics; Universitaet Bielefeld; IIASA

Date Written: September 2000

Abstract

In this paper we reconsider extensions and modifications of earlier work on a disequilibrium model of AS-AD growth. Our dynamic model exhibits more or less sluggishly adjusting prices and quantities, Keynesian demand rationing and fluctuating capacity utilization for both labor and capital. Firms use debt (and pure profits) to finance their investment expenditures. We first prove that the resulting 7D core dynamics are convergent (broadly speaking) for low adjustment speeds. We then demonstrate partly analytically and partly numerically that their interior steady state will lose asymptotic stability by way of Hopf bifurcations when relevant adjustment speeds are made sufficiently large. This holds in particular for debt deflation, where falling price levels (caused by price flexibility that is sufficiently high) cause significantly increasing real debt, falling investment and shrinking economic activity. This deepens the deflationary process already under way. Such an instability result even occurs in the case where accompanying real wage increases would support economic stability.

Suggested Citation

Chiarella, Carl and Flaschel, Peter and Semmler, Willi, Price Flexibility and Debt Dynamics in a High Order As-Ad Model (September 2000). U. of Technology, Sydney Finance and Economics Working Paper No. 109. Available at SSRN: https://ssrn.com/abstract=880178 or http://dx.doi.org/10.2139/ssrn.880178

Carl Chiarella (Contact Author)

University of Technology, Sydney - UTS Business School, Finance Discipline Group ( email )

PO Box 123
Broadway, NSW 2007
Australia
+61 2 9514 7719 (Phone)
+61 2 9514 7711 (Fax)

HOME PAGE: http://www.business.uts.edu.au/finance/

Peter Flaschel

Bielefeld University - Department of Business Administration and Economics ( email )

P.O. Box 100131
D-33501 Bielefeld, NRW 33501
Germany

Willi Semmler

The New School - Department of Economics ( email )

65 Fifth Avenue
New York, NY 10003
United States

HOME PAGE: http://www.newschool.edu/nssr/faculty/?id=4e54-6b79-4e41-3d3d

Universitaet Bielefeld ( email )

Universit├Ątsstra├če 25
Bielefeld, NRW
Germany

IIASA ( email )

Schlossplatz 1
Laxenburg/Austria, A-2361
Austria

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