5. Conclusions
This aggregated longitudinal analysis of 22 years of PSR in premier marketing journals highlights the development and current state of the literature and identifies several directions for further research. Although the present review confirms some progress in PSR, multiple research opportunities remain. The takeaways (Table 9) provide impetuses for action; researchers, editors, and practitioners can use these results to build a continuing dialogue about the optimal directions for PSR. In particular, such a dialogue might help reduce the divergence between academic and practical concerns.