This is the perfect (and essential) supplement for all econometrics classes--from a rigorous first undergraduate course, to a first master's, to a PhD course.
  
   - Explains what is going on in textbooks full of proofs and formulas
   - Offers intuition, skepticism, insights, humor, and practical advice (dos and don’ts)
   - Contains new chapters that cover instrumental variables and computational considerations
   - Includes additional information on GMM, nonparametrics, and an introduction to wavelets