Baltagi, Badi H.; Liu, Long - In: Economics Letters 104 (2009) 2, pp. 81-82
This note shows that for a spatial regression with equal weights, the LM test is always equal to NÂ /Â 2(NÂ -Â 1), where N is the sample size. This means that this test statistics is a function of N and not a function of the spatial parameter [rho]. In fact, this test statistic tends to...