Whether to test reverse causality. Defaults to TRUE.
file
File name of MS Word (".doc").
...
Arguments passed on to lmtest::grangertest(). For example, you may use robust standard errors by specifying the vcov argument (see GitHub Issue #23).
Details
Granger causality test examines whether the lagged values of a predictor have an incremental role in predicting (i.e., help to predict) an outcome when controlling for the lagged values of the outcome. Granger causality does not represent a true causal effect.