Studying differences between organizations : comparative approaches to organizational research This volume is motivated by key questions and challenges associated with reviving and developing a comparative perspective. One organizing theme of the volume is to present comparative analysis as a means to explain and describe organizational heterogeneity at varying levels and contexts. While much empirical work looks for the sources of homogeneity within fields industries etc. we believe that one advantage of doing comparative analysis is to make assessments of the observed differences between organizations. Thus we have asked all of the authors to consider how their style of comparative analysis enhances our understanding of organizational heterogeneity. The volume consists of two sections: an introductory essay section and a section where authors focus on specific theoretical methodological and empirical topics. A couple of papers are original empirical analyses that use a comparative logic or method. We expect that each paper in addition to providing a theoretical contribution will offer a meta discussion that explains how taking a comparative approach enhances our understanding of the phenomenon of interest The comparative analysis of organizational forms : considering field and ecological approaches Omar Lizardo Negotiating actorenvironment relations : a framework for comparative research Franz Wohlgezogen Paul Hirsch Differentiating organizational boundaries Katherine K. Chen Siobh(c)Øan OMahony Lost in space out of time : why and how we should study organizations comparatively Howard E. Aldrich Technology structure and heterogeneity among American antiwar organizations Fabio Rojas Organizations populations and fields : investigating organizational heterogeneity through a multilevel case study design Carol A. Caronna Seth S. Pollack W. Richard Scott Comparative organizational analysis : an introduction Brayden G. King Teppo Felin David A. Whetten Comparing organizations : empirical and theoretical issues W. Richard Scott Organizational comparative analysis : investigating similarities and differences among organizations David A. Whetten Comparative organizational analysis across multiple levels : a set theoretic approach Rodney Lacey Peer C. Fiss. This volume is motivated by key questions and challenges associated with reviving and developing a comparative perspective. One organizing theme of the volume is to present comparative analysis as a means to explain and describe organizational heterogeneity at varying levels and contexts. While much empirical work looks for the sources of homogeneity within fields industries etc. we believe that one advantage of doing comparative analysis is to make assessments of the observed differences between organizations. Thus we have asked all of the authors to consider how their style of comparative analysis enhances our understanding of organizational heterogeneity. The volume consists of two sections: an introductory essay section and a section where authors focus on specific theoretical methodological and empirical topics. A couple of papers are original empirical analyses that use a comparative logic or method. We expect that each paper in addition to providing a theoretical contribution will offer a meta discussion that explains how taking a comparative approach enhances our understanding of the phenomenon of interest