TY - JOUR AU - Lustig,Hanno AU - Nieuwerburgh,Stijn Van TI - How Much Does Household Collateral Constrain Regional Risk Sharing? JF - National Bureau of Economic Research Working Paper Series VL - No. 10505 PY - 2004 Y2 - May 2004 UR - http://www.nber.org/papers/w10505 L1 - http://www.nber.org/papers/w10505.pdf N1 - Author contact info: Hanno Lustig UCLA Anderson School of Management 110 Westwood Plaza, Suite C413 Los Angeles, CA 90095-1481 Tel: 310/825-1011 Fax: 310/825-9528 E-Mail: hlustig@anderson.ucla.edu Stijn Van Nieuwerburgh Stern School of Business New York University 44 W 4th Street, Suite 9-120 New York, NY 10012 Tel: 646/284-4141 Fax: 646/284-4141 E-Mail: svnieuwe@stern.nyu.edu AB - We construct a new data set of consumption and income data for the largest US metropolitan areas, and we show that the covariance of regional consumption and income growth varies over time and in the cross-section. In times and regions where collateral is scarce, regional consumption growth is about twice as sensitive to income growth. Household-level borrowing frictions can explain this new stylized fact. When the value of housing relative to human wealth falls, loan collateral shrinks, borrowing (risk-sharing) declines, and the sensitivity of consumption to income increases. Our model aggregates heterogeneous, borrowing-constrained households into regions characterized by a common housing market. The resulting regional consumption patterns quantitatively match those in the data. ER -