**The BOOT Technique**

Similar to the other sample reuse methods, the bootstrap can be used for variance approximation of a non-linear estimator under a complex sampling design. The method, however, differs from BRR and JRR in many respects, e.g. the generation of pseudosamples is quite different. We consider the bootstrap technique for variance estimation of a ratio estimator under a two-stage stratified epsem design where a constant number of clusters (which may be greater than two) is drawn with replacement from each stratum. See page 160 in Lehtonen, R. & Pahkinen, E. (2004)