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Institutions and the Path to the Modern Economy: Lessons from Medieval Trade

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Overview

It is widely believed that current disparities in economic, political, and social outcomes reflect distinct institutions. Institutions are invoked to explain why some countries are rich and others poor, some democratic and others dictatorial. But arguments of this sort gloss over the question of what institutions are, how they come about, and why they persist. This book seeks to overcome these problems, which have exercised economists, sociologists, political scientists, and a host of other researchers who use the social sciences to study history, law, and business administration.

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Editorial Reviews

From the Publisher
"Greif strips economic transactions down to their elements. He focuses on the core question: who (or what) were the watchdogs that allowed the merchants to trust one another and to bear with the princes who could confiscate the fruits of all their efforts? And who (or what) were the watchdogs' watchdogs? Greif repeatedly and carefully relates these questions to economic theory. He illustrates them with real transactions of medieval merchants. He takes the right approach to economic development, and thereby achieves an original and important new perspective on its causes. Institutions and the Path to the Modern Economy is a seminal work in economics and in history. It should be read by all social scientists."
-George A. Akerlof, 2001 Nobel Laureate in Economics and University of California, Berkeley

"If economic theory is worth anything at all, it should illuminate economic history. The most usual attempts to interpret history in terms of mainstream economic theory have tended to leave out the specifics and, in particular, the influence of past events and structures on later ones. Avner Greif's work demonstrates the power of using economic theory, especially game theory, to illuminate both structural patterns and change, while still respecting historical specificity. The evolution of medieval trade is used as a case to show how the problems raised by economic theorists (e.g., the need for enforcement of contracts ) are resolved by the creation of institutions which are constrained to be self-enforcing equilibria. I believe Greif's approach will lead to a revolution in the study of other eras and even the changes in present regimes."
-Kenneth Arrow, 1972 Nobel Laureate in Economics, and Professor Emeritus, Stanford University

"In Institutions and the Path to the Modern Economy, Avner Greif explores the cultures that prevailed in the European and Islamic portions of the Mediterranean in the Medieval period and the implication of their differences for the modern world. To tackle so grand a theme, Greif rearranges the intellectual furniture. Embedding game theory within the behavioral sciences, blurring the boundaries between deductive reasoning and empirical research and qualitative and quantitative methods, Greif teaches us not only about history but also about the place of history in causal explanation. Greifas book will shape future work in history, the study of development, and the social sciences."
-Robert H. Bates, Harvard University

"Avner Greif's study is a major landmark on the road to increasing our understanding of institutions and the role that they play in economic performance."
-Douglass C. North, 1993 Nobel Laureate in Economics

"[B]y creating new tools for studying institutions, [this book] is likely to inspire research for years to come. By all rights it deserves to do so, in economics, in sociology, in political science, in law, and (to the extent that historians in history departments pay attention to the social sciences) in history too. Economic historians obviously have special reason to prize the book, since it takes up some of the biggest issues in the field and makes a vigorous case for economic history within the larger discipline of economics. But other social scientists will highly value it too, and it will be no surprise if it ends up becoming — and rightfully so — a classic."
-Philip T. Hoffman, Division of Humanities and Social Sciences, California Institute of Technology, EH.NET

“Greif displays not only a masterful command of game theory and relevant historical detail, but also admirable and insightful integration of work by sociologists and political scientists on organizational and institutional change…The book provides a cogent demonstration of how game theory, careful attention to historical detail and interdisciplinary analysis can illuminate each other. Highly recommended.”
-Choice

"brilliant"
-Clyde G. Reed, Simon Fraser University

"Greif has addressed the great issues in economic expansion: emergence of markets, organization of trade, and how the medieval world provides the first encounter with the dynamic conditions that lat behind modernity."
-Susan Mosher Stuard, Haverford College (Emerita), Journal of Medieval Studies

"Greif's comparative approach, and his provocative conclusions regarding the centrality of institutions, are worth serious consideration."
-George Duncan, Saint Michael's College, Journal of Interdisciplinary History

"...[this] book is among the two or three most important to emerge during the past two decades on the historical development of economic institutions."
Perspectives on Politics, Rogers Hollingsworth, University of Wisconsin

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Product Details

Meet the Author

Avner Greif is the Bowman Family Endowed Professor in Humanities and Sciences at Stanford University where he teaches economics. He is the recipient of fellowships from the American Academy of Arts and Sciences, the Econometrics Society, and the MacArthur Foundation. He has published articles in American Political Science Review, European Review of Economic History, Chicago Journal of International Law, and the Journal of Political Economy as well as many edited books. Greif is also a co-author of Analytic Narrative (1998).

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Read an Excerpt


Cambridge University Press
0521480442 - Institutions and the Path to the Modern Economy - Lessons from Medieval Trade - by Avner Greif
Excerpt



PART I

Preliminaries

1

Introduction

On March 28, 1210, Rubeus de Campo of Genoa agreed to pay a debt of 100 marks sterling in London on behalf of Vivianus Jordanus from Lucca.1 There is nothing unusual about this agreement - in fact, there is evidence of thousands of such agreements in Europe at the time. But this agreement implicitly reveals why Rubeus lived in a period of remarkable economic growth measured by such proxies as urbanization, population growth, capital investment, and changing patterns of trade.2

First, this agreement reflects well-functioning markets. The institutional foundations of these markets were such that merchants trusted agents to handle their affairs abroad, even without legal contracts. Impersonal lending among traders from remote corners of Europe prevailed, and property rights were sufficiently secure that merchants could travel abroad with their riches. Second, it reflects well-functioning polities. The institutional foundations of polities throughout Europe during this time induced policies that were conducive to economic prosperity. Rubeus made his agreement in the Republic of Genoa, which had been established about a century earlier but had already pursued policies that made it a bustling commercial center. To understand why and how such well-functioning markets and polities came about in various historical episodes and what led to their persistence and decline, we have to study their institutional foundations.

Studying institutions sheds light on why some countries are rich and others poor, why some enjoy a welfare-enhancing political order and others do not. Socially beneficial institutions promote welfare-enhancing cooperation and action. They provide the foundations of markets by efficiently assigning, protecting, and altering property rights; securing contracts; and motivating specialization and exchange. Good institutions also encourage production by fostering saving, investment in human and physical capital, and development and adoption of useful knowledge. They maintain a sustainable rate of population growth and foster welfare-enhancing peace; the joint mobilization of resources; and beneficial policies, such as the provision of public goods.

The quality of these institutional foundations of the economy and the polity is paramount in determining a society's welfare. This is the case because individuals do not always recognize what will be socially beneficial nor are they motivated to pursue it effectively in the absence of appropriate institutions. A central question in the social sciences and history is therefore why societies evolve along distinct trajectories of institutional development and why some societies fail to adopt the institutions of those that are more economically successful.

This book draws upon detailed historical studies to motivate, illustrate, and present a new perspective - comparative and historical institutional analysis - that goes a long way toward advancing institutional analysis in general and addressing this question regarding the evolution of societies in particular. First, it provides a unifying concept of the term institution to integrate the many, seemingly alternative, definitions that prevail in the literature. Second, it studies institutions on the level of the interacting individuals while considering how institutionalized rules of behavior are followed even in the absence of external enforcement. Third, it advances a unified conceptual and analytical framework for studying the persistence of institutions, their endogenous change, and the impact of past institutions on subsequent institutional development. Finally, it argues that institutional analysis requires going beyond the traditional empirical methods in the social sciences that rely on deductive theory and statistical analysis. It then elaborates on a complementary method based on interactive, context-specific analysis. Central to this case study method is the use of theory, modeling, and knowledge of the historical context to identify an institution, clarify its origin, and understand how it persists and changes.

This new perspective makes explicit what institutions are, how they come about, how they can be studied empirically, and what forces affect their stability and change. It explains why and how institutions are influenced by the past, why they can sometimes change, why they differ so much from one society to another, and why it is hard to devise policies aimed at altering them.

This book puts forward the main aspects of this still-evolving perspective and illustrates its applicability by analyzing important issues in medieval economic history. Indeed, the limited ability to address these issues using the common approaches for institutional analysis led to the development of the perspective detailed here. It presents comparative and historical analyses of institutions in the European (Latin) and Muslim (Mediterranean) worlds. The analysis focuses on the late medieval period because the European economy and polity began its ascent to economic and political hegemony at that time. It suggests that even in this early period, institutional difference within Europe and between Europe and the Muslim world developed and directed subsequent institutional outcomes. This analysis leads to a conjecture regarding the institutional origin of the subsequent economic and political European ascendancy and intra-European divergence.

The rest of this chapter is organized in four sections. Section 1.1 briefly reviews the various lines of institutional analysis within economics to present their limitations. It argues that advancing our knowledge of the relationships between institutions and welfare-related outcomes requires mitigating three particular challenges. Section 1.2 provides a glimpse at how comparative and historical institutional analysis addresses these challenges and how it relates to various lines of institutional analysis, particularly outside economics. It also highlights why institutional analysis requires going beyond the empirical methods common in the social sciences and sketches the complementary empirical method developed here. Section 1.3 presents the reason this book focuses on institutional developments in Europe and the Muslim world during the late medieval period. Section 1.4 reviews the structure of the book and the substantive issues addressed in the empirical chapters.

1.1 THE CHALLENGES OF STUDYING INSTITUTIONS

Societies have different "technological" features, such as geographical location, useful knowledge, and capital stock, and these differences impact economic outcomes. Societies also have different "nontechnological" features, such as laws and enforcement methods, ways of allocating and securing property rights, and levels of corruption and trust. It is common to refer to such nontechnological features as institutions. I follow this convention here until I later redefine institutions and their relationships to such nontechnological features.

Economic theory suggests that institutional differences should influence economic outcomes because they affect decisions about work, saving, investment, innovation, production, and exchange. Econometric analyses suggest that they do. Although the results are tentative, they indicate that more-secure property rights, stronger rule of law, and greater trust are correlated with better economic outcomes (R. Hall and Jones 1999; Acemoglu, Johnson, and Robinson 2001; Rodrik, Subramanian, and Trebbi 2003; Zak and Knack 2001).

Econometric analyses and case studies also suggest the historical origins of differences in nontechnological features across societies. These differences were argued to reflect, for example, past cultures, social and power structures, and medieval republican political traditions (Greif 1994a; Glaeser and Shleifer 2002; Putnam 1993). In developing countries, such differences reflect the environment at the time of colonization (Acemoglu et al. 2001), the identity of the colonizing power (North 1981), and the initial wealth distribution (Engerman and Sokoloff 1997).

These findings, however, constitute a beginning, not an end result, for a research agenda aimed at understanding institutions. Understanding the causal mechanism behind these findings requires going beyond identifying correlations between measures of various nontechnological factors and outcomes of interest. It requires examining how the interacting individuals are motivated and able to behave in a manner that manifests itself in these various measures.3

It is useful to find out that corruption reduces investment, for example, but this finding does not reveal what motivates and enables people to behave in a corrupt manner. Similarly, discovering a correlation between the security of property rights and outcomes of interest does not explain differences in the levels or changes in security; asserting, as is common in economics, that the level of security reflects the function that property rights serve (e.g., efficiency or the interest of elites) does not explain how these rights become more or less secure. Understanding how property is secured requires knowing why those who are physically able to abuse rights refrain from doing so. Similarly, discovering correlations between historical events and differences in current nontechnological features does not reveal how and why past institutions influence subsequent institutional development.

Understanding the impact, persistence, and change of nontechnological features requires examining the micro-mechanisms underpinning their emergence, stability, and dynamics at the level of the interacting individuals. This requires, in particular, considering the motivation (incentives) of these individuals to act in a manner leading to or manifesting itself in these particular nontechnological features.

The main conceptual and analytical framework used in economic neoinstitutionalism, however, does not focus on this motivation.4 It often identifies economic institutions with politically determined rules that are imposed "top down" on economic agents by the polity. These rules govern economic life by, for example, assigning property rights and specifying taxes due. Political institutions - rules regulating the election of leaders and collective decision making - and political organizations, such as interest groups and labor unions, are therefore central to the analysis. Political institutions and organizations matter, because economic institutions are established and changed through the political process (North 1981, 1990; Barzel 1989; Sened 1997; G. Grossman and Helpman 2002). Transaction cost economics complements this analysis by postulating that economic agents, responding to rules, choose contracts and, through them, also establish organizations to minimize transaction costs (Coase 1937; O. Williamson 1985, 1996).

This "institutions-as-rules" framework is very useful in examining various issues, such as the rules that politicians prefer and the contractual forms that minimize transaction costs. Yet behavioral prescriptions - rules and contracts - are nothing more than instructions that can be ignored. If prescriptive rules of behavior are to have an impact, individuals must be motivated to follow them.5 Motivation mediates between the environment and behavior, whether the behavior is rational, imitative, or habitual. By motivation I mean here incentives broadly defined to include expectations, beliefs, and internalized norms.

The institutions-as-rules framework, however, is not well suited for considering the motivation to follow behavioral instructions embodied in rules and contracts. As a first approximation, and for various analytical purposes, it may be sufficient to assert that people follow a rule of behavior because other rules specify punishment if they do not. But this assertion merely pushes the question of institutional effectiveness one step backward, by assuming that those who are supposed to enforce the rules do so. Why would this be the case? Who watches the watchman?

To understand behavior, we need to know why some behavioral rules, originating either inside or outside the state, are followed while others are ignored - something that is not possible within an analytical framework in which motivation is taken as exogenous. A comprehensive understanding of prescriptive or descriptive rules requires examining how the motivation to follow particular rules of behavior is created.

Considering motivation at the level of the interacting individuals as endogenous is crucial to addressing many important issues. It is crucial to understanding what is referred to as "private order" - that is, situations in which order prevails despite the lack of a third-party enforcer of that order. In such situations, the prevalence of order or its absence reflects the behavior of the interacting individuals rather than what transpires between them and a third party. Indeed, order characterized by some security of property rights and exchange sometimes prevails when there is no state, when economic agents expect the state to expropriate rather than protect their property, or when the state is unwilling or unable to secure property rights and enforce contracts. Even in modern market economies with effective states, private order is an essential ingredient.

Because institutions reflect human actions, we ultimately must study them as private order even when a state exists. For some analytical purposes, it is useful to assume - as the institutions-as-rules does - that the state has a monopoly over coercive power and can enforce its rules. But political order and an effective state are outcomes. Political actors can and sometimes do resort to violence and invest in coercive power, the use of which can lead to political disorder or revolution. Studying political order or disorder requires examining the motivation of political actors to abide by the particular rules. Moreover, the effectiveness of state-mandated rules depends on motivating agents within the bureaucracy and judiciary to enforce them. Understanding the impact of the state requires examining the motivation of the agents involved. In other words, a comprehensive understanding of political order or its absence and of the behavior of the state's agents requires considering the motivation that influences the behavior of the relevant individuals.

Apart from its limited ability to study motivation, the institutions-as-rules approach is also limited in analyzing institutional dynamics. In accounting for institutional stability and change, it focuses only on the important, but partial, impact of politics and efficiency. When institutions are identified with politically devised rules or efficient contracts, institutional change is considered to result from an exogenous shift in the interests or knowledge of the political actors who set the rules or the efficient contracts (see Weingast 1996; O. Williamson 1985). Institutions contribute to change only to the extent that they alter the interests and knowledge underpinning the prevailing rules or contracts.

Institutional persistence has been attributed mainly to frictions in the process of institutional adjustments (e.g., the costs of changing rules) or to the impact of exogenous informal institutions, such as customs and traditions. These informal institutions are considered immutable cultural features whose rates of change are so slow as to be immaterial (North 1990). This leaves much to be explained, because persistence and change are attributed to forces other than the institution under study (O. Williamson 1998, 2000).

Classical game theory has been used extensively to expand institutional analysis to the study of endogenous motivation. Game theory considers situations that are strategic in the sense that the optimal behavior of one player depends on the behavior of others. A game-theoretic analysis begins by specifying each player's set of possible actions and information and the payoffs each will receive given any combination of actions that can be taken by all the players. Given these rules of the game, classical game theory focuses mainly on equilibria in which each decision maker correctly anticipates the behavior of others and finds it optimal to take the action expected of him. (The basic concepts of game theory are explained in Appendix A.) This framework enables endogenously motivated behavior to be considered; motivated by the actual and expected behavior of all other players, each player adopts the equilibrium behavior. Game theory thus allows the relationship between the rules of the game and self-enforcing behavior to be studied.

Economists, in particular, have used game-theoretic equilibrium analysis to consider why individuals follow particular rules.6 Such analysis has been applied to the study of private order, particularly one in which property rights are secured and contracts are fulfilled in the absence of an effective legal system administered by the state (O. Williamson 1985; Greif 1989, 1993; Ellickson 1991; Dixit 2004). Related research examines the endogenous motivation to adhere to various contracts despite asymmetric information and limited legal contract enforceability (Townsend 1979; Hart and Holmstrom 1987; Hart and Moore 1999). In the game-theoretic approach, institutions are considered as either equilibria (Schotter 1981; Greif 1993; Calvert 1995), the shared beliefs motivating equilibrium play (Greif 1994a; Aoki 2001), or the rules of the game (North 1990).

When institutions are defined in these ways, however, classical game theory provides an inadequate analytical framework for studying institutional dynamics - that is, the forces leading institutions to change and the influence of past institutions on subsequent ones. Strictly speaking, in classical game theory the present and future behavior of players is a manifestation of a predetermined strategy. All behavior is then forward-looking, although it may be conditioned on past events. Furthermore, because this behavior is an equilibrium, there are no endogenous forces causing institutions to change. Exogenous institutional changes can occur when the rules of the game change - as a result of new technology, for example - but studying endogenous change is inconsistent with the view of institutions as equilibria.

Worse yet, game theory reveals that many equilibria - self-enforcing patterns of behavior - are usually possible in a given game. Attempts to develop a game-theoretic equilibrium concept predicting a unique outcome in all games failed to do so in the repeated situations that are central to institutional analysis. Furthermore, game theory postulates no relationships between behavior in one game and a historically subsequent one.7 Any equilibrium in a new game, even if this game is only marginally different from a previous one, is qually plausible, irrespective of what transpired in the previous game. If institutions are viewed as equilibria or beliefs in games, we cannot study the impact of past institutions on subsequent ones.



© Cambridge University Press
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Table of Contents

1 Introduction 1
2 Institutions and transactions 29
3 Private-order contract enforcement institutions : the Maghribi traders' coalition 58
4 Securing property rights from the grabbing hand of the state : the merchant guild 91
5 Endogenous institutions and game-theoretic analysis 124
6 A theory of endogenous institutional change 158
7 Institutional trajectories : how past institutions affect current ones 187
8 Building a state : Genoa's rise and fall 217
9 On the origin of distinct institutional trajectories : cultural beliefs and the organization of society 269
10 The institutional foundations of impersonal exchange 309
11 Interactive, context-specific analysis 350
12 Institutions, history, and development 379
App. A A primer in game theory 407
App. B Is homo sociologicus strategic? 421
App. C The role of theory : reputation-based private-order institutions 428
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