(via The Walmart Effect - The Atlantic)
The two new working papers use novel methods to isolate Walmart’s economic impact—and what they find does not look like a progressive success story after all. The first, posted in September by the social scientists Lukas Lehner and Zachary Parolin and the economists Clemente Pignatti and Rafael Pintro Schmitt, draws on a uniquely detailed dataset that tracks a wide range of outcomes for more than 18,000 individuals across the U.S. going back to 1968. These rich data allowed Parolin and his co-authors to create the economics equivalent of a clinical trial for medicine: They matched up two demographically comparable groups of individuals within the dataset and observed what happened when one of those groups was exposed to the “treatment” (the opening of the Walmart) and the other was not.
Their conclusion: In the 10 years after a Walmart Supercenter opened in a given community, the average household in that community experienced a 6 percent decline in yearly income—equivalent to about $5,000 a year in 2024 dollars—compared with households that didn’t have a Walmart open near them. Low-income, young, and less-educated workers suffered the largest losses.
