We offer a theory for the complementarity between the size of a retail chain and the scope of its business to explain the growth of general-merchandise firms and the expansion of the "superstore" format. The complementarity results from an interaction of the retailer's economies of scale and...

This paper documents and explains the recent rise of "big-box" general merchandisers. Data from the Census of Retail Trade for 1977-2007 show that general-merchandise chains grew much faster than specialist retail chains, and that general merchandisers that added the most stores also made the...

We use hurricane Katrina's damage to the Mississippi coast in 2005 as a natural experiment to study business survival in the aftermath of a capital-destruction shock. We find very high exit rates for businesses that incurred physical damage, particularly for small firms and less-productive...

I estimate the aggregate income elasticity of Wal-Mart's and Target's revenues using quarterly data for 1997-2006. I find that Wal-Mart's revenues increase during bad times, whereas Target's revenues decrease, consistent with Wal-Mart selling "inferior goods" in the technical sense of the term....

Wal-Mart is the largest company in the world, yet little is known about its economic impact. This essay discusses what is known about Wal-Mart's competitive advantage and its economic impact on local communities, as well as the national and global economy, and highlights the open questions to be...

Barcode scanners were introduced in the 1970s as a way to reduce labor costs in stores, particularly at checkout. This paper is the first to estimate their effect on productivity. I use store-level data from the 1972, 1977, and 1982 Census of Retail Trade, matched to data on store scanner...

I study the effect of the length of the Christmas "shopping season" in the United States (traditionally, beginning the day after US Thanksgiving) on aggregate retail sales. I find a statistically significant increase in per-capita retail sales in November and December (combined) of approximately...

Barcodes and barcode scanners transformed the grocery industry in the 1970s. I use store-level data from the 1972, 1977, and 1982 Census of Retail Trade, matched to data on store scanner installations, to estimate scanners’ effect on labor productivity. I find that early scanners increased a...