This paper investigates the behaviour of the pooled ols estimator in a panel model with stationary and nonstationary regressores as both N amd T go to infinity. the nonstationary regressor is assumed I(1) ,the stationary regressor is set i.i.d.The investigation is carried through four Monte...

We propose a model diagnostic device to compare different linear and non linear parametric time series models of real GDP business cycle.The comparison appears of remarkable economic importance since different models have very different implications in term of long run persistence of negative...