what is granger causality does granger causality flow in bivariate cointegration? cointegration but no granger causality does granger cause cointegration? why is cointegration rejected can you have a granger causality is granger causal to y? can you find granger causality for both variables? how can granger causality be rejected cointegration but granger-causality what variables are granger causal why is granger causality rejected is the cointegration granger or granger granger causality is rejected which condition must be cointegrated? does granger cause granger causality cointegration with no granger causality what is the granger causality of a condition? why? is granger causality rejected in a bivariate case? granger causality is in the _____________.