The dynamics of startup activity are crucial for job creation, innovation, and a competitive economy. Does regional firm formation exhibit hysteresis, such that shocks, including those induced by temporary policy interventions, have permanent effects? Due to the pronounced heterogeneity among...

This article is our personal perspective on the IPS test and the subsequent developments of unit root and cointegration tests in dynamic panels with and without cross-section dependence. In this note, we discuss the main idea behind the test and the publication process that led to Im, Pesaran...