EPILOGUE Christopher Chase-Dunn and Thomas D. Hall This is our opportunity to review the main issues which have emerged from this collection and to have the last word. There are a number of major controversies, but one conclusion is obvious: the world-systems perspective stimu- lates new and fruitful approaches to pre- modern socio-economic systems. Some of the controversies are reflections of old debates within the social sciences: 1. To what extent should we emphasize systemic and evolutionary models versus historical conjunctures? 2. What are the important similarities between modern and premodern socio-economic sys- tems and what are the qualitative differences? 3. Have there been major sea changes in the logics of systems (transform ations) or have there been only different mixes of logics (or random changes)? How can we measure the extent to which one logic is predominant over another? 4. If there have been major transformations of system logics, how can we theoretically define and empirically measure these logics and how can we explain the transforma- tions? A second set of issues are more particular to our project as it is constituted in this volume: 1. How to define and bound world-systems? 2. How to define and measure core/periphery hierarchies? 3. Does it make sense to compare stateless intergroup systems with larger state-based systems? 4. Is the comparison of a large number of world-systems theoretically desirable? Is it feasible? 5. Is the study of single world-systems over very long periods of time a more fruitful strategy? 6. Can the scientific study of the transforma- tion of deep structural logics in world- systems provide important clues about how the modern global political economy might become transformed? Most of these problems are at least implic- itly raised in each of the chapters in this collection. We will discuss Chapters 2 through 8 to present our most recent reflec- tions on these matters. Chapter 2, Jane Schneider's path-breaking discussion, raises many of the issues about the nature and boundaries of world-systems. Schneider argues that prestige goods exchanges are important in reproducing and changing power structures and thus they cannot be considered epiphenomenal. The editors and all of the authors in this volume agree with her. Nevertheless the editors think that Immanuel Wallerstein's emphasis on a division of labor of bulk goods production and exchange should not be abandoned because this is also impor- tant to structural reproduction and change. Thus we include both prestige goods networks and bulk goods networks in our definition of world-systems. This creates a boundary prob- lem because the boundaries of these two types of networks are rarely similar. We are most likely to have at least two levels of integra- tion: a number of regional bulk goods networks linked together by a prestige goods network. To complicate things further we also agree with Wilkinson (Chapter 4) that regular polit- ical/military competition and cooperation should be used to bound world-systems. This adds an additional degree of fuzziness to the boundaries of world-systems because the net- works of political/military interaction do not usually correspond with the networks of pres- tige goods exchange. This is discussed fur- ther below. The other problem which we need to mention again is the use of modes of production to bound world-systems. Wallerstein uses both modes of production and bulk goods networks, though he sometimes emphasizes one and some- times the other. As stated in Chapter 1, he argues that the European world-economy and the Ottoman world-empire were separate systems, but he does not argue that they engaged in no trade of bulk goods. Rather he contends that they were different systems because capitalism was dominant in Europe but not in the Ottoman Empire. We have claimed that the use of mode of production criteria to spatially bound world-systems is a theoretical mistake, but this does not leave us in the same camp with Gills and Frank, who argue that there are no transitions between modes of production (accu- mulation). We think that capitalism (however defined) did become predominant for the first time in Europe, but that Europe was a subsystem of a larger Afro-eurasian super-system. Europe had not been a separate bulk goods network from the rest of the Mediterranean littoral since at least Roman times and the politi- cal/military interactions and prestige goods interactions between Europe and the other areas of the Afro-eurasian super-system have been important at least since the Greeks and Phoenicians moved toward the west. Explana- tion of the emergent predominance of capital- ism in the European subsystem by focussing exclusively on the uniqueness of European feudalism or religion is a myopic exercise which recent work by Abu-Lughod (1989) and others has begun to correct. Capitalist institutions were neither absent from premodern and non-European systems, nor were they randomly distributed among them. The commodification of land, goods, wealth and labor had been increasing, albeit unevenly, in the Afro-eurasian super-system for thousands of years. The empires of Central Civilization were becoming increasingly commercialized. The Roman and Chinese Empires were perhaps the most capitalist of these, but within them the tributary mode of accumulation remained pre- dominant. Semiperipheral autonomous capitalist city states were important agents of commodi- fication that linked empires to one another and to peripheral regions by marketized trade (Chase-Dunn, 1991). The emphasis on continui- ties stressed by Gills and Frank is an impor- tant antidote to the quaint notion that Europe was unique, but a more valuable approach would study the ways in which commodification emerged and spread within Central Civilization and the other tributary world-systems. Only this kind of approach can sensibly separate the conjunctural aspects of the "rise of the West" from its more evolutionary aspects. Chapter 3 by Gills and Frank is an out- standing contribution which focusses our attention on the continuities which can be found in the world-system. By claiming there has only been one world-system for the last 5000 years they create many difficulties, however. Their own definition belies this. They argue that two regions are in the same system if they importantly affect one anoth- er. What about the pre-Columbian systems described by Feinman and Nicholas and by Peregrine? These were certainly not part of the world-system. Wilkinson's approach is superior. He is much more specific about how he bounds his civilizations/world-systems and he documents the expansion of the world-system (his Central Civilization) without denying the existence of others. Gills and Frank also raise the issue of the mode of production, which they call "accumula- tion." Like Ekholm and Friedman (1982), they deny that there is anything unique at the level of the logic of accumulation about the Europe-centered system which distinguishes it from the earlier Eurasian system. As stated above, we do argue that the Europe-centered system was unique in the degree to which capitalist accumulation became predominant. It is possible to acknowledge many of the conti- nuities which Gills and Frank describe while still maintaining that the modern system is qualitatively distinct in fundamental re- spects. One major difference between the modern interstate system and the earlier systems of political-military interaction is in the nature of the cycle of political centraliza- tion/decentralization. What are the similari- ties and differences between the rise and fall of empires and the rise and fall of hegemonic core states in the modern world-system? An important specification of the alternation between empires and interstate systems is presented by Wilkinson (see Figure 2 in Chap- ter 4). The significant difference is that the most successful states in the modern world-system (the hegemons) do not try to create universal empires, but rather act to sustain the multicentric interstate system. In premodern systems the most successful states pursued a strategy of empire-formation by conquest. Our explanation for this differ- ence is the predominance in the modern world- system of an alternative to the tributary strategy of accumulation -- the accumulation of wealth through the production of commodi- ties. Capitalist accumulation thrives on a politically multicentric system, and thus the most successful states, which are now capital- ist states, act to sustain the interstate system, not to conquer it. Wilkinson's larger theoretical apparatus and his detailed specification in Chapter 4 are magnificent contributions. They are conceptually explicit and clear. The fund of empirical knowledge which Wilkinson shares with the other civilizationists is detailed and extensive. We have only a few demurs. Wilkinson is a political scientist of the international relations persuasion and the histories upon which the civilizationists draw are predominantly narratives about the wars of the great men. When Wilkinson says that "diamonds may be forever, but clubs are always trumps" he is both making a witticism and cleaving to a perspective which sees states as the main actors in history. Wilkinson, like Gills and Frank, does not believe in a major sea-change which transformed the logic of the game with the rise of the West. But the game he thinks has continued to be played is dif- ferent from the one hypothesized by Gills and Frank. They emphasize the interaction between economic exploitation and political domina- tion, while Wilkinson sees political domina- tion as the predominant logic of Central Civilization in all ages. This state-centric approach is reflected in Wilkinson's use of political/ military inter- action as the empirical means to spatially bound world-systems. We agree that conflictual interaction is important, but we expect that the centrality of military conflict varies across different kinds of systems, and we argue that prestige and bulk goods networks are also important forms of interaction. The addition of these other criteria would compli- cate Wilkinson's spatio-temporal schema. Prestige goods networks are generally larger than regularized political/military interac- tion nets. China and Rome were linked by prestige goods trade, but not by direct polit- ical/military engagement. The mapping of these three network criteria would usually produce regional subsystems of bulk goods exchange within larger systems of politi- cal/military interaction within even larger systems of prestige goods exchange. We propose that: bulk goods networks be called "regional subsystems," politi- cal/military interaction networks be labeled "world-systems," and prestige goods networks be termed "supersystems." This sorts out the issues rather clearly, we think, though empirical work will undoubtedly raise many more. Wilkinson's definition of civili- zations/world-systems raises another issue. He uses both "level" and "interconnectedness" criteria. We have already discussed the interconnectedness aspect above in our consid- eration of definitions and spatial boundaries of world-systems. The "level" criterion is similar to that used by other civilizationists to differentiate between civilizations and precivilizations. Wilkinson requires his systems to have cities, record-keeping, eco- nomic surplus and non-producing classes. Gills and Frank also exclude intersocietal systems which existed before the emergence of urbanization and states in Mesopotamia 5000 years ago so they must also believe that some such set of features is essential to a world- system. Our strategy is quite different. Instead of emphasizing similarities we are searching for differences. In variation we hope to find explanations for the structural characteris- tics of different kinds of world-systems. Thus we extend the use of the term to class- less, stateless systems. This raises many new problems, but we believe that the effort to include these very different kinds of systems will be well worth the trouble. Our distinc- tion at the conceptual level between world- systems and core/periphery hierarchies is helped immensely. Not only do different kinds of world-systems have different kinds of core/periphery hierarchies, but some world- systems do not have them at all. In terms of the "river system" analogy employed by Gills and Frank to describe how many smaller tributaries joined together to form the world-system, we want to study creeks and small streams. We believe that they will be found to have some dynamics which are generally similar to larger systems and yet they differ in important ways. For example, much recent research suggests that there is a process of the rise and fall of chiefdoms which is analytically similar to the cycles of political centralization/decentralization exhibited in the rise and fall of states, empires and hegemonic core powers. We are not claiming that this process is the "same" but rather that the general similarities and the important differences are worthy of investiga- tion. Does this mean that we are claiming that every kind of human interaction system is a world-system? If everything is inside a cate- gory, the category is not useful. We are not claiming a priori that all human groups live in intergroup systems which importantly deter- mine the conditions of social reproduction and change. Rather we are arguing that whether or not this is true should be examined. We do exclude human interaction spheres in which all the groups are extensively nomadic because we believe that territoriality of some kind is fundamentally important to the notion of a world-system. Another reason to include stateless, class- less world-systems in our comparative study is that this allows us to examine what everyone would agree is a fundamental watershed in system logic -- the transformation from the kin-based modes to the state-based modes of production (accumulation). We want to build on the important work of Friedman and Rowlands (1977) and Gailey (1987) to understand the interplay between class formation, gender hierarchy and pristine state formation in the context of these tiny world-systems. For the purposes of the long term goal of building a theory of transformations this provides an additional class of cases to serve as the empirical foundation. Wilkinson is also pleasantly explicit about his usage of the terms core, periphery and semiperiphery. His definitions differ from ours. We distinguish between core/periphery differentiation and core/periphery domination- exploitation. Our concern is to create con- cepts which do not carry more baggage from the modern world-system than is desirable, and to allow comparative research to fill in the contents. Wilkinson's usage more directly focusses on political control or its absence. The semi- periphery, in his usage, is a less developed area which is under core control, while the periphery is in trade or political contact with the core, but not under control. We have already endorsed the notion of the contact periphery, but our periphery also includes areas which are controlled and dominated by the core. We also imagine that an area can be economically exploited without being politi- cally dominated (e.g., neo-colonialism in the modern world-system). Our definitions would produce different zonal boundaries -- most evident in Wilkinson's maps in Figures 10 and 11. Wilkinson's definition is not incompatible with ours, but it does reflect differences in what he calls "theoretical ancestors" as well as differences in empirical scope. Because we come from a neo-Marxian background we are more likely to stress the importance of economic exploitation. And because we want to examine stateless systems we need to define core/periphery relations broadly enough to be able to capture very different kinds of inter- societal inequalities. We have already commented on the thoughtful nature of Chapter 5 by Stephen Sanderson. We agree that the world-systems perspective can be thought of as evolutionary once the many pitfalls of prior evolutionism have been exorcised. We do not agree that "internal" factors are generally more important than world-system level factors in premodern sys- tems, but that is a matter for research to determine when hypotheses about the causality of particular outcomes have been specified and operationalized. For now we think that the strong world-system position should be pushed as far as it will go. Sanderson follows Perry Anderson's claim that European and Japanese feudalism were institutionally unique compared to all the other decentralized tributary systems on Earth, and that this uniqueness accounts for the strong development of European and Japa- nese capitalism. It is our position that many other regions had experienced the "parcelliza- tion of sovereignty," but not in the context of a larger system in which capitalist insti- tutions were so fully developed. This, and the decline of the East described by Abu- Lughod, created an opportunity for semi- peripheral Europe to form a new core region in which capitalist-controlled cities were dense and capitalist states became core states for the first time. Earlier states controlled by capitalists -- city states -- had been located in the semiperipheral interstices between empires. It was the formation of a regional subsystem in which an interstate system was dominated by states largely controlled by capitalists which led to the eventual hegemony of the West over a single global system. Europe was simply in the right place at the right time. Peter Peregrine's study of Cahokia (Chapter 6) is an important contribution because it shows how a complex chiefdom (or pristine state) system can be analyzed as a world- system. The description of this system as based wholly on the monopolization of prestige goods raises questions about the relationship between this sort of control and other forms of power. Friedman and Rowlands (1977) argue that such systems are inherently unstable because those who are dominated by symbolic means can redefine the symbols or change their beliefs. Thus such symbolic power needs to be backed up by military power or by control over less substitutable goods. In support of this, the Cahokia-centered system was unstable. It collapsed almost completely, and perhaps this was due to over-reliance on the monopoly of prestige goods. Even so, the rather hierar- chical nature of the system makes us guess that military and bulk goods aspects should be given somewhat more attention than they re- ceive from Peregrine. Hall's discussion of nomads (Chapter 7) raises many new questions without answering them, but a few conclusions seem relatively solid. First, failure to study the complex roles of nomads in core/periphery hierarchies will distort our understanding of the evolu- tion and transformations of world-systems. Second, the roles of nomads in core/periphery hierarchies are complex, and are, at least in part, understood only in the context of the larger system in which they are embedded. Put another way, frontiers are integral parts of world-systems, even though they are -- by definition -- on the fringe. Third, and more tentatively, the technology of land transpor- tation and communication in combination with changing geopolitical structures accounts for relative changes in the power of nomads within various contexts. Once nomads are contained within a bounded territory, and technology exists to efficiently patrol that territory, nomads cease to play a major role in core/periphery hierarchy processes. Both Central Asia and Northwest New Spain appear to be unusual in the length of time during which nomads played significant roles in at least regional processes. We say "ap- pear" because nomads have been so seldom studied in this context that we cannot yet realistically assess how unusual these cases are. Regardless, these cases suggest openness and sensitivity to other, more ephemeral yet similar processes, in other locations and other times. In particular, we should examine the roles of nomads -- and others -- as inter- mediaries between the various levels proposed above: regional subsystems, world-systems, and supersystems. Further empirical examination of these will help refine or concepts and our understanding of general processes. The contribution by Gary Feinman and Linda Nicholas (Chapter 8) reveals how archaeologi- cal data can be used to examine the nature of a regional division of labor. Their interest- ing finding is that dependency emerges in this region originally not on the basis of food production but on the basis of craft produc- tion, probably of prestige goods. This sug- gests a sequence of core/periphery formation which may also have occured in other early world-systems. Back to the Future The comparative study of world-systems poses potentially severe theoretical problems for classical explanations of social change. Most troublesome for Marxists is the possible demotion of class from its central role as the engine of social change. While it is certain- ly premature to claim this to have been demon- strated, it should be left open as a possibil- ity that Marx was wrong to generalize the centrality of class struggle in early capital- ist Europe into the distant past. Class strug- gle cannot have been the motor of change in classless systems. On the other hand, the more general Marxist presuppositions employed by several anthropol- ogists (e.g., Wolf, 1982) -- a focus on the way in which social labor is mobilized in connection with the production and reproduc- tion of material life and the institutions which regulate interaction -- may be the most useful theoretical apparatus to employ for developing a new general explanation of his- torical development which focusses on world- systems and core/periphery hierarchies. The study of production, distribution and accumu- lation ought to analyze the interaction be- tween intrasocietal class relations and inter- societal core/periphery hierarchies. And, as with the modern system, we should examine the transsocietal aspects of class relations. The conceptual reformulations of world-systems and core/periphery hierarchies presented in this book knock all the endogenist versus exogenist debates into a cocked hat. The issue of the primacy of "internal" versus "external" factors is transformed. We now need to explicitly consider the multilevel nature of all world-systems and to study the interac- tions between levels. The sorting out of what is external or internal to which context is, of course, complicated by the fuzziness of system bound- aries. The designation of bulk goods regional subsystem, political/military world-systems, and prestige goods supersystems (or some other set of terms) clarifies this problem somewhat, but not completely. It is probably more profitable to think in terms of degrees of hierarchy, degrees of interconnectedness, degrees of "systemness," and to study these variables empirically. Stinchcombe's (1985) comment that the early modern world-system was a "ramshackle affair" remains cogent as does John Hall's (1984) dissection of modern world- -system holism. Attention to context within larger networks should also be paid in the comparative study of the processes by which less hierarchical systems become incorporated into more hierar- chical ones. Small societies are transformed into ethnic groups in the processes of incor- poration, but the nature of these transforma- tions may vary with the type of core/periphery context. The historical development from small world-systems to the global one has been a process of the emergence of larger and larger levels of organization and the incorporation of less hierarchical systems into more hierar- chical ones. The transitions involved in chiefdom formation, state formation, empire formation, the rise and fall of hegemonic core powers (and the possible future emergence of a global state) may be seen as iterations of a general process. It is the shared features in the sequences of political centraliza- tion/decentralization, the emergence of larger levels of organization, and the general impor- tance of core/periphery relations in these processes, which are emphasized by Gills and Frank, and Ekholm and Friedman. But a closer study of these historical patterns will reveal that there have been important systematic differences across the iterations. The clarification of these is just beginning. The trick now is to employ a comparative framework which can walk the narrow trail between overly abstract general model-building and overly specific emphasis on uniquenesses and conjunctural circumstances. Finally, we would like to extend our plura- listic approach to the comparative study of world-systems to include research strategies. Synchronic, diachronic, comparative, and case study strategies are all potentially useful. Synchronic studies need to take into account that contemporaneous world-systems may repre- sent very different types of systems. The degree of independence of cases becomes an increasingly thorny problem through time. Diachronic studies face the same problem in spades. Even in a diachronic case study the context is changing, but if the object of study is a whole world-system this problem should be reduced. There are at least three broad strategies for dealing with these problems comparatively. The first is to examine a small number of cases synchronically. This is certainly the most feasible approach, and can be most help- ful for addressing conceptual issues and for making very general distinctions. It also allows for another important product of case studies -- the consideration of uniquenesses. A second strategy is to make comparisons of trajectories of change, that is to compare long-term case studies -- Chapter 7 uses this strategy. This approach can also be important for formulating concepts and hypotheses about processes of change. The third approach is to make formal comparisons which examine varia- tion across many different world-systems. This approach can only be undertaken after concep- tual work has been done and hypotheses about comparative processes have been formulated and operationalized. Though the problems of such formal cross-world-system research are great, it is the only design which can provide strong evidence for or against hypotheses which are derived from contending general theories of historical development. Our effort in Chapter 1 to develop a typology of world-systems is intended to facilitate such comparisons. Hence, not taxonomic completeness, but a preliminary and heuristically useful guide for comparative studies is the goal of our set of types. Since we began this project we have found many other social scientists who have been working along similar lines and we have man- aged to convince many others to join the effort. We fancy that this might be the begin- ning of the shift of social science from multiparadigm childhood to grown-up normal science, but if it is just one more turn in the great sky-wheel which oscillates between historical particularism and evolutionary generalism, so be it. We are not convinced by the current post-modern proclamation that political and scientific progress is always an illusion, though we certainly acknowledge that the ideology of progress has been used as a tool of oppression on many occasions. While we think that the study of less hierarchical societies may be able suggest ways for own very hierarchical world-system to become more humane in the future, we do not follow those who romanticize the "primitive" because they dislike the present. The contemporary involve- ment of our own global political economy in what almost everyone sees as important re- structuring is a further source of inspiration for a new study of the past. A "back to the future" approach to the transformation of the global world-system may turn out to be both politically and scientifically progressive. NOTES