RT Monograph SR 00 A1 Carroll, G.R. T1 Long-Term Evolutionary Change in Organizational Populations: Theory, Models and Empirical Findings YR 1996 FD 1996-06 SP 44 AB Organizational ecology is a theoretical perspective on organizations that attempts to explain long-term social evolution, especially the rise and fall of organizational populations. This article reviews the most successful research program of the perspective, one based on the density-dependent model of legitimation and competition. It discusses the model and evidence that has been offered in its support as well as criticisms that have been registered. Unsolved research problems of the program are identified and models-in-progress attempting to address these open questions are discussed and compared. PB WP-96-055 PP IIASA, Laxenburg, Austria AV Published LK https://pure.iiasa.ac.at/id/eprint/4971/