Growth rate convergence, fact or artifact? An essay on panel data econometrics / Marc Nerlove -- Do panel data rescue the purchasing power parity (PPP) theory? / G.S. Maddala, Shaowen Wu and Peter C. Liu -- Neglected heterogeneity and dynamics in cross-country savings regressions / Nadeem U....

In this paper we develop full information methods for estimating the parameters of a system of simultaneous equations with error component structure and establish relationships between the various structural estimators