“…Due to these aspects, academics often refer to this bivariate relation as an overall heterogeneous and complex interaction (Endrikat, Guenther, & Hoppe, ; Guenther & Hoppe, ). Although literature provides a vast number of comprehensive and meaningful primary studies (among others, Hart & Ahuja, ; King & Lenox, ; Konar & Cohen, ; Russo & Fouts, ; Tang, Walsh, Lerner, Fitza, & Li, ) and meta‐analyses (among others, Albertini, ; Endrikat et al, ; Guenther, Hoppe, & Endrikat, ; Hang, Geyer‐Klingeberg, Rathgeber, & Stöckl, ), the discussion of the causality is largely fragmented. Besides the prevalent mixed empirical evidence, existing primary studies are strongly characterized by their heterogeneous study designs, which hampers comparison.…”