SUBPRIME MORTGAGES AND LENDING BUBBLES
Abstract
We consider a model with two types of households; the poor with no initial endowment and the rich with positive endowment; and two types of assets; properties in a poor area and properties in a rich area. In the model, poor agents need credit to buy an asset whereas the rich can draw from their endowment. We show that credit-fuelled housing bubbles sometimes may improve welfare, making the poorer individuals better-off. More precisely, there exist two types of equilibria in both markets: One is a bubble equilibrium, and the other is an equilibrium where asset prices are stable over time. While the poor always obtain a positive surplus in the bubble equilibrium, this is not necessarily true for the rich. Our results suggest that there may be scope for market interventions aimed at sustaining the value of assets held by credit-constrained agents after the burst of a credit bubble.
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References
Abreu, D., and Brunnermeier,M.K. (2003). Bubbles and crashes. Econometrica 71, 173–204.
Allen, F., and Gale, D. (2000). Bubbles and crises. The Economic Journal 110, 236–255.
Allen, F., Morris, S., and Postlewaite, A. (1993). Finite bubbles with short sale constraints and asymmetric information. Journal of Economic Theory 61, 206–229.
Barlevy, G. (2014). A leverage-based model of speculative bubbles. Journal of Economic Theory 153, 459–505.
Barlevy, G. (2015) Bubbles and fools. Economic Perspectives 39, 54–77.
Blanchard., and Jean, O. (1979). Speculative bubbles, crashes and rational expectations. Economics Letters 3, no. 4, 387-389.
Brunnermeier., and Markus, K. (2008) Bubbles. New Palgrave Fictionary of Economics. Vol. 8. 1.
Brunnermeier., Markus, K., and Oehmke, M. (2013) Bubbles, financial crises, and systemic risk. Handbook of the Economics of Finance, chapter 18. w18398 (Elsevier).
Conlon., and John, R. (2004) Simple finite horizon bubbles robust to higher order knowledge. Econometrica 72, 927–936.
Conlon., and John, R. (2015). Should central banks burst bubbles? Some microeconomic issues. The Economic Journal 125, 141–161.
De Long., Bradford,J., Shleifer,A., Summers,L.H., and Waldmann,R.J. (1990) Noise trader risk in financial markets. Journal of Political Economy 98, 703–738.
Diba, B.T., and Grossman, H.I. (1988). The theory of rational bubbles in stock prices. The Economic Journal, 98(392), pp.746-754.
Ferreira, F., Gyourko,J., and Tracy,J. (2010). Housing busts and household mobility. Journal of Urban Economics 68, 34–45.
Galí, J. (2014) Monetary policy and rational asset price bubbles. The American Economic Review 104, 721–752.
Harrison, J.M., and Kreps,D.M. (1978) Speculative investor behavior in a stock market with heterogeneous expectations. The Quarterly Journal of Economics 92, 323–336.
Martin, A., and Ventura,J. (2012) Economic growth with bubbles. The American Economic Review 102, 3033–3058.
Scheinkman, J.A., and Xiong, W. (2003) Overconfidence and speculative bubbles. Journal of Political Economy 111, 1183–1220.
Shleifer, A., and Vishny,R.W. (1997). The limits of arbitrage. The Journal of Finance 52, 35–55.
Tirole, J. (1982). On the possibility of speculation under rational expectations. Econometrica: Journal of the Econometric Society, 1163–1181.
Tirole, J. (1985). Asset bubbles and overlapping generations. Econometrica: Journal of the Econometric Society, 1071–1100.
Copyright (c) 2018 Ali Yavuz Polat
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
Buletin Ekonomi Moneter dan Perbankan / Bulletin of Monetary Economics and Banking is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.