Wal-Mart argues that the company’s downward squeeze on prices raises the standard of living of the entire U.S. population, saving consumers upwards of $100 billion each year, perhaps as much as $600 a year at the checkout counter for the average family. A McKinsey Global Institute study concluded that retail-productivity growth, as measured by real value added per hour, tripled in the dozen years after 1987, in part due to Wal-Mart’s competitive leadership of that huge economic sector. “These savings are a lifeline for millions of middle- and lower-income families who live from payday to payday,” argues Wal-Mart CEO H. Lee Scott, “In effect, it gives them a raise every time they shop with us.”
But why this specific, management imposed trade off between productivity, wages, and prices? Henry Ford used the enormous efficiencies generated by the deployment of the first automotive assembly line to double wages, slash turnover, and sell his Model T at prices affordable even to a tenant farmer. As historian Meg Jacobs makes