Damodar N. Gujarati’s Basic Econometrics (co-authored with Dawn C. Porter in later editions) remains the most intuitive introduction to econometric theory. Unlike texts by Greene or Wooldridge that assume a high level of mathematical maturity, Gujarati uses a "lecture style" approach. He introduces complex topics like and Heteroscedasticity with real-world examples (e.g., the relationship between inflation and money supply).
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