This video provides an example of good use of instrumental variables, covering Angrist and Lavy's 1999 study, 'Using Maimonides' Rule to Estimate the Effect of Class Size on Scholastic Achievement.' Part of the paper is available here: http://homes.stat.unipd.it/erich/teaching/eval/papers/regdis.PDF Check out https://ben-lambert.com/econometrics-course-problem-sets-and-data/ for course materials, and information regarding updates on each of the courses. Quite excitingly (for me at least), I am about to publish a whole series of new videos on Bayesian statistics on youtube. See here for information: https://ben-lambert.com/bayesian/ Accompanying this series, there will be a book: https://www.amazon.co.uk/gp/product/1473916364/ref=pe_3140701_247401851_em_1p_0_ti
