The Kwiatkowski-Phillips-Schmidt-Shin (KPSS) tests is used for testing a null hypothesis that a time series is stationary around a deterministic trend (i.e. trend-stationary) as opposed to a unit root.
Trend stationary processes are mean-reverting.
The Kwiatkowski-Phillips-Schmidt-Shin (KPSS) tests is used for testing a null hypothesis that a time series is stationary around a deterministic trend (i.e. trend-stationary) as opposed to a unit root.
Trend stationary processes are mean-reverting.