We completely share the reviewer’s view that despite Biehl’s PF/FP essay, almost everyone follows the standard approach, and we do the same. Our observation is just a restatement of the proposition that our approach is traditional.
Despite Biehl’s (1998) insightful essay, almost all empirical research on the topic has interpreted the Wagnerian proposition As Ram (1998, Pp. 149-150) has explained, considerations of “nonstationarity” of the variables or “spuriousness” of the correlations or regression do not have much bearing on such tests.