The Problem of Measuring Productivity

Although the official productivity statistics are encouraging, they are far from perfect. They don’t do a very good job of accounting for quality, variety, timeliness, customer service, or other hard-to-measure aspects of output. While bushels of wheat and tons of steel are relatively easy to count, the quality of a teacher’s instruction, the value of more cereal choices in a supermarket, or the ability to get money from an ATM 24 hours a day is harder to assess. Compounding this measure...