Stationarity and convergence of LCF series

The ongoing industrial activities in the USA have created environmental pressure, which is being reflected on its biocapacity and ecological footprint. The policymakers are in pursuit of policy maneuvers to control this level of environmental degradation. Load Capacity Factor (LCF) is a comprehensive indicator of environmental degradation, and analyzing its nature of convergence might reveal the efficacy of these policies. The present study assesses the convergence of LCF by testing its unit root properties using a stepwise integration order testing framework including univariate tests, time-domain accounting for additive outliers and breaks in the intercept as well as the Koenker and Xiao (2004) quantile autoregressive unit root testing procedure. Empirical findings of the study suggest that the LCF shows a sign of convergence in all the cases, including the presence of structural breaks.