Modernizing Political Science: A Model-Based Approach

Abstract

Although the use of models has come to dominate much of the scientific study of politics, the discipline's understanding of the role or function that models play in the scientific enterprise has not kept pace. We argue that models should be assessed for their usefulness for a particular purpose, not solely for the accuracy of their predictions. We provide a typology of the uses to which models may be put, and show how these uses are obscured by the field's emphasis on model testing. Our approach highlights the centrality of models in scientific reasoning, avoids the logical inconsistencies of current practice, and offers political scientists a new way of thinking about the relationship between the natural world and the models with which we are so familiar.Kevin A. Clarke is Assistant Professor, Department of Political Science, University of Rochester (kevin.clarke@rochester.edu) and David M. Primo is Assistant Professor, Department of Political Science, University of Rochester (david.primo@ rochester.edu). Earlier versions of this paper were presented at the 2004 Annual Meeting of the American Political Science Association and at the 2005 Annual Meetings of the Midwest Political Science Association and the Canadian Political Science Association; we thank the participants for their comments. We thank Chris Achen, Jim Alt, Jake Bowers, Henry Brady, Bear Braumoeller, John Duggan, Mark Fey, Rob Franzese, John Freeman, Gary Goertz, Miriam Golden, Jim Granato, Gretchen Helmke, John Jackson, Keith Krehbiel, Skip Lupia, Scott de Marchi, Andrew Martin, Becky Morton, Bob Pahre, Kevin Quinn, Curt Signorino, Randy Stone, and three anonymous reviewers for helpful comments and discussion. We also thank Matt Jacobsmeier for research assistance. Support from the National Science Foundation (Clarke: Grant #SES-0213771, Primo: Grant #SES-0314786) is gratefully acknowledged.

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