Economic Growth with Bubbles

34 Pages Posted: 5 Apr 2010 Last revised: 14 May 2023

See all articles by Alberto Martin

Alberto Martin

Universitat Pompeu Fabra - Centre de Recerca en Economia Internacional (CREI); Centre for Economic Policy Research (CEPR)

Jaume Ventura

Universitat Pompeu Fabra - Centre de Recerca en Economia Internacional (CREI); Centre for Economic Policy Research (CEPR); National Bureau of Economic Research (NBER)

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Date Written: April 2010

Abstract

We develop a stylized model of economic growth with bubbles. In this model, financial frictions lead to equilibrium dispersion in the rates of return to investment. During bubbly episodes, unproductive investors demand bubbles while productive investors supply them. Because of this, bubbly episodes channel resources towards productive investment raising the growth rates of capital and output. The model also illustrates that the existence of bubbly episodes requires some investment to be dynamically inefficient: otherwise, there would be no demand for bubbles. This dynamic inefficiency, however, might be generated by an expansionary episode itself.

Suggested Citation

Martin, Alberto and Ventura, Jaume, Economic Growth with Bubbles (April 2010). NBER Working Paper No. w15870, Available at SSRN: https://ssrn.com/abstract=1583811

Alberto Martin (Contact Author)

Universitat Pompeu Fabra - Centre de Recerca en Economia Internacional (CREI) ( email )

Ramon Trias Fargas, 25-27
Barcelona, 08005
Spain

Centre for Economic Policy Research (CEPR) ( email )

London
United Kingdom

Jaume Ventura

Universitat Pompeu Fabra - Centre de Recerca en Economia Internacional (CREI) ( email )

Ramon Trias Fargas, 25-27
Barcelona, 08005
Spain

Centre for Economic Policy Research (CEPR)

London
United Kingdom

National Bureau of Economic Research (NBER)

1050 Massachusetts Avenue
Cambridge, MA 02138
United States

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