Example: tourism industry
IV Estimation and its Limitations: Weak Instruments and ...
rst stage regression and 2 are related, the cuto value is usually compared with it. There are di erent ways in which we can de ne this cuto value, depending what we want to control (bias of , size of t-test), etc. The value of the cuto depends on the method employed. This means that the same instrument can be weak for one
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Instrumental Variables Estimation in Stata
mayoral.iae-csic.orgInstrumental Variables Estimation in Stata Christopher F Baum1 Faculty Micro Resource Center Boston College March 2007 1 Thanks to Austin Nichols for the use of his material on weak instruments and Mark Schaffer for helpful comments.
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