This paper proposes Lagrange Multiplier based panel unit root tests allowing for structural breaks through simple … flexibility to accommodate heterogeneous break types across cross-sections in a panel. Response surfaces to approximate finite … sample distributions of the underlying test statistics required to implement the panel tests are provided. The tests are …

Computing power now allows empirical researchers to use intensive computing estimation techniques with nonlinear panel … of standard econometric packages with nonlinear panel-data models, and second, I develop a posterior simulation for Tobit … panel-data models in the presence of serial correlation, where high-dimensional integrals are induced by the serial …