Misaccounting for endogeneity: The peril of relying on the Heckman two‐step method without a valid instrument

Research Summary Strategy research addresses endogeneity by incorporating econometric techniques, including Heckman's two‐step method. The economics literature theorizes regarding optimal usage of Heckman's method, emphasizing the valid exclusion condition necessary in the first stage. However, our meta‐analysis reveals that only 54 of 165 relevant papers published in the top strategy and organizational theory journals during 1995–2016 claim a...