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Evidence has accumulated suggesting the clustering of radio loud quasars isgreater than for radio quiet quasars. We interpret these results in a contextin which the fraction of radio loud quasar formation is less than or equal tothat for radio quiet quasars for all environments and redshift. Because weassume that post-merger cold gas onto large black holes produces either a radioloud or a radio quiet quasar, we show that for largest black hole masses thatlive in largest dark matter halos, fRLQ approaches 0.5 from below but does notexceed it, such that in rich clusters the formation of a radio loud quasartends to be equally likely to occur as a radio quiet quasar. In dark matterhalos with smaller mass, by contrast, radio quiet quasars are more likely toform and the likelihood increases inversely with dark matter halo mass. As aresult, averaging over a population of radio loud and radio quiet quasars willnecessarily generate lower average black hole masses for the radio quietsubgroup. Hence, despite the fact that the formation of radio quiet quasars ispreferred over radio loud quasars in any environment, at any mass scale, at anyluminosity, or redshift, averaging over a range of radio loud quasars will givethe appearance they are preferred in cluster environments over radio quietquasars. We show how this also accounts for the order of magnitude differencein the total number of jetted active galaxies compared to non-jettedcounterparts.

Why radio quiet quasars are preferred over radio loud quasars regardless of environment and redshift