Angrist, Joshua D. - 1995
Instrumental Variables (IV) estimates tend to be biased in the same direction as Ordinary Least Squares (OLS) in finite … Instrumental Variables (SSIV). SSIV works as follows: we randomly split the sample in half, and use one half of the sample to … Instrumental Variables (USSIV). We apply SSIV and USSIV to the data used by Angrist and Krueger (1991) to estimate the payoff to …