B. A. Dorfman

B. A. Dorfman was an American economist known for developing the concept of a "cost of living index," which measures how much it costs to maintain a certain standard of living over time or across different locations. His work helps compare prices of goods and services, accounting for changes in quality and consumer preferences. This allows policymakers and economists to better understand inflation, affordability, and economic well-being, making it a fundamental tool in economic analysis and decision-making.