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Lunch Seminar: Veronica Guerrieri - Chicago Booth
Monday 08 June 2015, 01:00pm - 02:00pm

House Prices and Consumer Spending

Abstract:

The paper studies the effects of house prices on consumption in a life-cycle model with income uncertainty and precautionary savings. First, we focus on the response of consumption to a one-time, permanent increase in house prices. We show that, with Cobb-Douglas preferences, the individual response is given by a simple formula: the marginal propensity to consume out of temporary income times housing holdings. In the aggregate, the model can generate very large effects of house prices of consumption—with an elasticity of 0.3-0.4 for working age households—because it features an endogenous distribution in which some households have substantial housing holdings and, at the same time, are highly levered and have high MPC. We extend the model to allow for fixed costs of adjustment in housing and for a rental option. Our simple formula continues to be a good approximation in the extended model. Aggregate elasticities are still sizeable—in the order of 0.1-0.15—-but smaller than in the baseline, because agents with low net worth tend to self-select into renting. Next, we use the model to explore the consumption implications of a boom-bust in house prices. To generate a boom-bust in residential investment, we introduce time-varying expectations of future housing appreciation. The model’s high elasticities contribute to generate substantial fluctuations in consumption as a result of house price dynamics. The endogenous evolution of household debt plays a crucial role, as the increased leverage in the boom phase contributes substantially to the consumption contraction when the boom ends.

   
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