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Two assertions that have never been particularly controversial among criminologists are, first, that the amount and kinds of victimization experienced by a group of people or by a class of objects depend on the exposure of the class to crime and second, that some people or kinds of objects are more exposed to crime than are others.The assertions are considered, at least implicitly, whenever a rate is altered so as to reflect a "population at risk."For years some criminologists have argued vigor-
Michael R. Gottfredson (Thu,) studied this question.