Skinner, Chris J.; de Toledo Vieira, Marcel - London School of Economics (LSE) - 2007
generalized least squares type. We argue theoretically that the impact of ignoring clustering in standard error estimation will … tend to increase with the number of waves in the analysis, under some patterns of clustering which are realistic for many … social surveys. The implication is that it is, in general, at least as important to allow for clustering in standard errors …