BALTAGI, Badi H.; SONG, Seuck Heun; JUNG, Byoung Cheol - In: Annales d'Economie et de Statistique (2002) 65, pp. 219-278
This paper derives several Lagrange Multiplier tests for the unbalanced nested error component model with serially correlated remainder disturbances. The problems of overtesting and undertesting for serial correlation and zero random group and nested subgroup effects are considered. The joint...