We draw attention to two problems associated with the use of instrumental variables (IV), the importance of which for empirical work has not been fully appreciated. First, the use of instruments that ...
Background Groin injuries represent a considerable problem in male football. Previous groin-specific prevention programmes have not shown a significant reduction in groin injury rates. An exercise ...
Followers want comfort, stability, and solutions from their leaders. But that’s babysitting. Real leaders ask hard questions and knock people out of their comfort zones. Then they manage the resulting ...
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