Levels of analysis problems in international studies∗

Abstract

The international studies literature often refers to the “level of analysis problem.” This paper points out that what has often passed for a single problem actually consists of at least three separate issues: the use of aggregate data to make ecological inferences in statistical analyses; the definition of primitive units in international relations theory; and the identification of the effects of systems on their individual constituent units. The paper goes on to show that some of the problems that have been discussed under the “level of analysis” rubric can be better understood if each of these different issues is considered separately.