pedroni99 is the bivariate function in the pco package, that takes two matrices as its arguments. gdi is a data set of Gross domestic investment as a share of GDP (in percent) for 25 high income OECD countries, 2013-2017. gds is Gross domestic savings as a share of GDP (in percent) for 25 high income OECD countries, 1973-2013.
Asymptotic distributions and critical values are computed for several residualābased tests of the null of no cointegration in panels for the case of multiple regressors, including regressions with individualāspecific fixed effects and time trends. The associated cointegrating vectors and the dynamics of the underlying error processes are permitted considerable heterogeneity across individual members of the panel.
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