Baltagi, Badi H.; Egger, Peter; Pfaffermayr, Michael - 2014
across pairs or regional units or even across cross-sectional units and time inevitably leads to a panel data structure of … the data. This chapter is concerned with a host of issues that arise with the estimation of such models, respecting their … with missing or zero trade flow data, structural versus reducedform estimation, the role of dynamics or cross …