This paper derives a joint Lagrange Multiplier (LM) test which simultaneously tests for the absence of spatial lag dependence and random individual effects in a panel data regression model. It turns out that this LM statistic is the sum of two standard LM statistics. The first one tests for the...

his textbook teaches some of the basic econometric methods and the underlying assumptions behind them. It also includes a simple and concise treatment of moreadvanced topics in time-series, limited dependent variables and panel d¤ata models, as well as specification testing, Gauss-Newton...