Conceptual Models and the Cuban Missile Crisis ® Graham T. Allison The American Political Science Review, Vol. 63, No. 3 (Sep., 1969), 689-718. Stable URL: http://links.jstoi\org/sici?sici=0003-0554%28196909%2963%3A3%3C689%3ACMATCM%3E2.0.CO%3B2-%23 The American Political Science Review is currently published by American Political Science Association. Your use of the JSTOR archive indicates your acceptance of JSTOR's Terms and Conditions of Use, available at http://www.jstor.org/about/terms.html. JSTOR's Terms and Conditions of Use provides, in part, that unless you have obtained prior permission, you may not download an entire issue of a journal or multiple copies of articles, and you may use content in the JSTOR archive only for your personal, non-commercial use. Please contact the publisher regarding any further use of this work. Publisher contact information may be obtained at http: // w w w.j s tor.org/j oum al s/apsa. html. Each copy of any part of a JSTOR transmission must contain the same copyright notice that appears on the screen or printed page of such transmission. JSTOR is an independent not-for-profit organization dedicated to creating and preserving a digital archive of scholarly journals. For more information regarding JSTOR, please contact suppoit@jstor.org. http:// w w w .j s tor. org/ Thu May 13 10:00:22 2004 The American Political Science Review VOL. LXIII SEPTEMBER, 1969 NO. 3 CONCEPTUAL MODELS AND THE CUBAN MISSILE CRISIS* Graham T. Allison Harvard University The Cuban missile crisis is a seminal event. For thirteen days of October 1962, there was a higher probability that more human lives would end suddenly than ever before in history. Had the worst occurred, the death of 100 million Americans, over 100 million Russians, and millions of Europeans as well would make previous natural calamities and inhumanities appear insignificant, Given the probability of disaster— which President Kennedy estimated as "between 1 out of 3 and even"—our escape seems awesome.1 This event symbolizes a central, if only partially thinkable, fact, about our existence, That such consequences could follow from the choices and actions of national governments obliges students of government as well as participants in governance to think hard about these problems. Improved understanding of this crisis depends in part on more information and more probing analyses of available evidence. To contribute to these efforts is part of the purpose of this study. But here the missile crisis serves primarily as grist for a more general investigation. * A longer version of this paper was presented at the Annual Meeting of the American Political Science Association, September, 1968 (reproduced by the Rand Corporation, P-3919). The paper is part of a larger study, scheduled for publication in 1969 under the title Bureaucracy and Policy: Conceptual Models and the Cuban Missile Crisis. For support in various stages of this work I am indebted to the Institute of Politics in the John F, Kennedy School of Government and the Center for International Affairs, both at Harvard University, the Rand Corporation, and the Council on Foreign Relations, For critical stimulation and advice I am especially grateful to Richard E. Neustadt, Thomas C. Sehelling, Andrew W. Marshall, and Elisabeth K. Allison. 1 Theodore Sorensen, Kennedy (New York, 1965), p. 705. This study proceeds from the premise that marked improvement in our understanding of such events depends critically on more self-consciousness about what observers bring to the analysis. What each analyst sees and judges to be important is a function not only of the evidence about what happened but also of the "conceptual lenses" through which he looks at the evidence. The principal purpose of this essay is to explore some of the fundamental assumptions and categories employed by analysts in thinking about problems of governmental behavior, especially in foreign and military affairs. The general argument can be summarized in three propositions: 1. Analysts think about problems of foreign and military policy in terms of largely implicit conceptual models that have significant consequences for the content of their thought.' Though the present product of foreign policy analysis is neither systematic nor powerful, if one carefully examines explanations produced by analysts, a number of fundamental similarities emerge. Explanations produced by particular analysts display quite regular, predictable features. This predictability suggests a snbstruc^ ture. These regularities reflect an analyst's as-sumptions about the character of puzzles, the categories in which problems should be considered, the types of evidence that are relevant, and the determinants of occurrences. The first proposition is that clusters of such related assumptions constitute basic frames of reference or conceptual models in terms of which analysts s In attempting to understand problems of foreign affairs, analysts engage in a number of related, but logically separable enterprises: (a) description, (b) explanation, (c) prediction, (d) evaluation, and (s) recommendation. This essay focuses primarily on explanation (and by implication, prediction). 689 690 THE AMERICAN POLITICAL SCIENCE REVIEW VOL. 63 both ask and answer the questions; What hap-pened? Why did the event happen? "What will happen?3 Such assumptions are central to the activities of explanation and prediction, for in attempting to explain a particular event, the analyst cannot simply describe the full state of the world leading up to that event. The logic of explanation requires that he single out the relevant, important determinants of the occurrence.4 Moreover, as the logic of prediction underscores, the analyst must summarize the various determinants as they bear on the event in question. Conceptual models both fix the mesh of the nets that the analyst drags through the material in order to explain a particular action or decision and direct him to cast his net in select ponds, at certain depths, in order to catch the fish he is after. 2. Most analysts explain (and predict) the behavior of national governments in terms of various farms of one basic conceptual model, here entitled the Rational Policy Model (Model I) 5 In terms of this conceptual model, analysts attempt to understand happenings as the more or less purposive acta of unified national governments. For these analysts, the point of an explanation is to show how the nation or government 'In arguing that explanations proceed in terms of implicit conceptual models, this essay makes no claim that foreign policy analysts have developed any satisfactory, empirically tested theory. In this essay, the use of the term "model" without qualifiers should be read "conceptual scheme." * For the purpose of this argument we shall accept Carl G. Heropel s characterization of the logic of explanation: an explanation "answers the question, 'Why did the explanadum-phenomenon occur?' by showing that the phenomenon resulted from particular circumstances, specified in d, Cj, . „ . Cj,, in accordance with laws Li, La, . . . Lr. By pointing this out, the argument shows that, given the particular circumstances and the laws in question, the occurrence of the phenomenon was to be expected; and it is in this sense that the explanation enables us to understand why the phenomenon occurred." Aspects of Scientific Explanation (New York, 1965), p. 337. While various patterns of explanation can be distinguished, vis., Ernest Nagel, The Structure of Science: Problems in ike Logic of Scientific Explanation, New York, 1061), satisfactory scientific explanations exhibit this basic logic. Consequently prediction is the converse of explanation. * Earlier drafts of this argument have aroused heated arguments concerning proper names for these models. To choose names from ordinary language is to court confusion, as well as familiarity. Perhaps it is best to think of these models as I, II, and III. could have chosen the action in question, given the strategic problem that it faced. For example, in confronting the problem posed by the Soviet installation of missiles in Cuba, rational policy model analysts attempt to show how this was a reasonable act from the paint of view of the Soviet Union, given Soviet strategic objectives. 3. Two "alternative" conceptual models, here labeled an Organizational Process Model (Model II) and a Bureaucratic Politics Model (Model III) provide a base for improved explanation and prediction. Although the standard frame of reference has proved useful for many purposes, there is powerful evidence that it must be supplemented, if not supplanted, by frames of reference which focus upon the large organizations and political actors involved in the policy process. Model IJs implication that important events have important causes, i.e.; that monoliths perform large actions for big reasons, must be balanced by an appreciation of the facts (a) that monoliths are black boxes covering various gears and levers in a highly differentiated decision-making structure, and (b) that large acts are the consequences of innumerable and often conflicting smaller actions by individuals at various levels of bureaucratic organizations in the service of a variety of only partially compatible conceptions of national goals, organizational goals, and political objectives, Recent developments in the field of organization theory provide the foundation for the second model. According to this organizational process model, what Model I categorizes as "acts" and "choices" are instead outputs of large organizations functioning according to certain regular patterns of behavior. Faced with the problem of Soviet missiles in Cuba, a Model II analyst identifies the relevant organizations and displays the patterns of organizational behavior from which this action emerged. The third model focuses on the internal politics of a government. Happenings in foreign affairs are understood, according to the bureaucratic politics model, neither as choices nor as outputs. Instead, what happens is categorized as out-comes of various overlapping bargaining games among players arranged hierarchically in the national government. In confronting the problem posed by Soviet missiles in Cuba, a Model III analyst displays the perceptions, motivations, positions, power, and maneuvers of principal players from which the outcome emerged.8 * In strict terms, the "outcomes" which these three models attempt to explain are essentially actions of national governments, i.e., the sum of activities of all individuals employed by a government relevant to an issue. These models focus not on a state of affairs, i.e., a full description of the 1969 CONCEPTUAL MODELS AND THE CUBAN MISSILE CRISIS 691 A central metaphor illuminates differences among these models. Foreign policy has often been compared to moves, sequences of moves, and games of chess. If one were limited to observations on a screen upon which moves in the chess game were projected without information as to how the pieces came to be moved, he would assume—as Model I does—that an individual chess player was moving the pieces with reference to plans and maneuvers toward the goal of winning the game. But a pattern of moves can be imagined that would lead the serious observer, after watching several games, to consider the hypothesis that the chess player was not a single individual but rather a loose alliance of semi-independent organizations, each of which moved its set of pieces according to standard operating procedures. For example, movement of separate sets of pieces might proceed in turn, each according to a routine, the king's rook, bishop, and their pawns repeatedly attacking the opponent according to a fixed plan. Furthermore, it is conceivable that the pattern of play would suggest to an observer that a number of distinct players, with distinct objectives but shared power over the pieces, were determining the moves as the resultant of collegial bargaining. For example, the black rook's move might contribute to the loss of a black knight with no comparable gain for the black team, but with the black rook becoming the principal guardian of the "palace" on that side of the board. The space available does not permit full dew-odd, but upon national decision and implementation. This distinction ia stated clearly by Harold and Margaret Sprout, "Environmental Factors on the Study of International Politics," in James Ros-enau (ed), International Politics and For&ign Policy (Gleneoe, Illinois, 1961), p. 116. This restriction excludes explanations offered principally In terms of international systems theories. Nevertheless, this restriction is not severe, since few interesting explanations of occurrences in foreign policy have been produced at that level of analysis. According to David Singer, "The nation state —our primary actor in international relations . . . ia clearly the traditional focus among Western students and is the one which dominates all of the texts employed in English-speaking colleges and universities.11 David Singer, "The Level-of-Analysis Problem in International Relations,'1 Klaus Knorr and Sidney Verba (eds.), The, International System (Princeton, 1961). Similarly, Richard Brody's review of contemporary trends in the study of international relations finds that "scholars have come increasingly to focus on acts of nations. That ia, they all focus on the behavior of nations in some respect. Having an interest in accounting for the behavior of nations in common, the prospects for a common frame of reference are enhanced." velopment and support of such a general argument.* Rather, the sections that follow simply sketch each conceptual model, articulate it as an analytic paradigm, and apply it to produce an explanation. But each model is applied to the same event: the U.S. blockade of Cuba during the missile crisis. These "alternative explanations" of the same happening illustrate differences among the models—at work.s A crisis decision, by a small group of men in the context of ultimate threat, this is a case of the rational policy model par excellence. The dimensions and factors that Models II and III uncover in this case are therefore particularly suggestive. The concluding section of this paper suggests how the three models may be related and how they can be extended to generate predictions. MODEL i: RATIONAL POLICY RATIONAL POLICY MODEL ILLUSTRATED Where is the pinch of the puzzle raised by the New York Times over Soviet deployment of an antiballistic missile system?9 The question, as the Times states it, concerns the Soviet Union's objective in allocating such large sums of money for this weapon system while at the same time seeming to pursue a policy of increasing detente. In former President Johnson's words, "the paradox ia that this [Soviet deployment of an anti-ballistic missile system] should be happening at a time when there is abundant evidence that our mutual antagonism is beginning to ease."10 This question troubles people primarily because Soviet antiballistic missile deployment, and evidence of Soviet actions towards detente, when juxtaposed in our implicit model, produce a question. With reference to what objective could the Soviet government have rationally chosen the simultaneous pursuit of these two courses of actions? This question arises only when the analyst attempts to structure events as purposive choices of consistent actors. 1 For further development and support of these arguments see the author's larger study, Bureaucracy and Policy; Conceptual Models