Walmart often faces strong local opposition when trying to build a new store. Opponents often claim that Walmart lowers nearby housing prices. In this study we use over one million housing transactions located near 159 Walmarts that opened between 2000 and 2006 to test if the opening of a Walmart does indeed lower housing prices. Using a difference-in-differences specification, our estimates suggest that a new Walmart store actually increases housing prices by between 2 and 3 percent for houses located within 0.5 miles of the store and by 1 to 2 percent for houses located between 0.5 and 1 mile.
IntroductionOne of the most significant changes over the past two decades in the U.S. retail market is the expansion of large box stores and supercenters. Walmart is the largest of these rapidly growing retailers and is currently the biggest private employer in the world.In the United States alone, Walmart currently operates more than 4,400 retail facilities and employs almost 1.4 million people. 1 Phone surveys suggest that 84% of households in the U.S. shop at Walmart in a given year with 42% of households reporting to be regular Walmart shoppers (Pew Research Center, 2005 period. In contrast to the county-level analyses conducted by most previous work on the impacts of Walmart, the micro-level nature of our dataset allows us to develop an identification strategy that can help us to overcome the potential endogeneity of the location and timing of Walmart openings. More specifically, we employ a difference-indifferences analysis that compares housing prices before and after a Walmart opens for areas very close to a newly built Walmart, to areas slightly farther away.The results from this analysis suggest that a new Walmart store increases nearby housing prices. Our primary analysis suggests that houses located within 0.5 miles of the store see increases in their prices of about 2-3 percent when comparing the two and a half years before the Walmart opened to the two and a half years after the opening. Houses between 0.5 and 1 mile from the Walmart see an increase of 1-2 percent. It does not 4 appear that these price impacts are caused by an abrupt increase in the number of houses that sold in the area or by a change in the composition of houses that sold. Furthermore, graphical evidence and falsification tests provide no evidence of a spurious, positive effect due to differential housing price growth at the Walmart location and are therefore supportive of a causal interpretation of our difference-in-differences estimates of the impact of Walmart on housing prices.The paper proceeds as follows. In section 2 we discuss the potential impacts of Walmart in terms of the value of accessibility and the costs of negative externalities. We proceed in section 3 to describe the key datasets used in our analysis. In section 4, we describe our empirical strategy for estimating the impact of Walmart on housing prices and in section 5, we present the results. Finally, we conclude in section 6.
Accessibility and Externality Ef...