What did Fisher pioneer in econometrics?
Index numbers
Regression analysis
Time series
Panel data
Answer
Index numbers, a key tool in econometrics, were pioneered by Irving Fisher. These numbers measure changes in the price level or the quantity of goods and services over time. Fisher's work in this area laid the foundation for understanding inflation, deflation, and other economic trends.
Irving Fisher Trivia: 31 Questions to Test Your Memory
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