CONTRIBUTIONS TO ISLAMIC ECONOMIC THEORY

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1 CONTRIBUTIONS TO ISLAMIC ECONOMIC THEORY

2 By the same author AN ISLAMIC SOCIAL WELFARE FUNCTION MANPOWER PLANNING AND POLICIES IN SAUDI ARABIA

3 CONTRIBUTIONS TO ISLAMIC ECONOMIC THEORY A Study in Social Economics Masudul Alam Choudhury Associate Professor of Economics University College of Cape Breton Nova Scotia, Canada Palgrave Macmillan

4 ISBN ISBN (ebook) DOI / Masudul Alam Choudhury 1986 Softcover reprint ofthe hardcover 1st edition All rights reserved. For information, write: Scholarly & Reference Division, St. Martin's Press, Inc., 175 Fifth Avenue, New York, NY First published in the United States of America in 1986 ISBN Library of Congress Cataloging-in-Publication Data Choudhury, Masudul Alam, Contributions to Islamic economic theory. Bibliography: p. Includes index. I. Economics-Religious aspects-islam. 2. Islam Economic aspects. I. Title. BPI73.75.C ' ISBN

5 To my loving wife, Nuzhat, and my dear children, Mufeedh, Nafay and Moaz

6 Contents List of Tables List of Figures Acknowledgements Preface List of Meanings of Arabic Transliterations Introduction: Towards a Definition of Islamic Economic Theory ix x xi xiii XVI PART I PRINCIPLES 5 1 Principles of Islamic Economics 7 PART II MICROECONOMICS 21 2 An Islamic Approach to the Theory of Consumer Demand 23 3 First-order Efficiency Conditions of the Firm in an Islamic Economy 33 4 Introduction to the Financial Statement of the Firm in an Islamic Economy 40 5 The Role of zakah, the Islamic Quasi Wealth Tax, in Resource Allocation 51 6 An Analytical Model of Profit-sharing in an Islamic Economy 72 7 Microeconomic Decision-making in an Islamic Framework 87 8 Formation of Social Ordering in an Islamic Welfare Economy 108 vii

7 viii Contents PART III MACROECONOMICS Investment Theory in an Islamic Perspective Macro Consumption Function in an Islamic Framework 140 II Macroeconomic Relations in the Islamic Economic Order 166 PART IV POSTSCRIPT Towards a Methodological Development of Islamic Economic Theory 191 Notes and References 217 Subject Index 237

8 List of Tables 5.1 Estimates of Per Capita Income and zakah for Saudi Arabia at Market Prices, Linear Distribution of Per Capita Income and zakah for Saudi Arabia, Estimate of the Coefficient 'A' in the Income-zakah Relation for Saudi Arabia, Effects of Introduction of zakah as a Tax on Short-run Savings at Different Levels of Marginal Propensity to Consume Values of MPS for Different Values of P when Zl = Values of MPS for Different Values of P when z = ix

9 List of Figures 2.1 Price-Quantity Relationship in an Islamic Framework, and Indifference Curves Comparison with the Conventional Consumer Behaviour Pricing Mechanism of the Firm in an Islamic Economy Implications of the Optimal Dividend-Retained Earning Trade-off Relationship Among zakah Rate, Investment and Income in the I-Economy Income-Employment -zakah Relationship Adjustment Process between Profit-sharing Ratios with Varying Profit rates Substitution and Income Effects in Optimal Investment Decision in a Diversified Portfolio The zakah -Benefit Multiplier Relation and Conformable Utility Frontier p-i-k Relationship in an Islamic Economy Optimal Allocation ofinvestment in an Islamic Economy Intertemporally 134 ILl Demand, Supply Shifts and the Profit-Liquidity Trap in the Islamic Monetary Sector Macroeconomic General Equilibrium System of the Islamic Economy Ethico-economic Equilibrium in the Consumption and Production Sets 213 x

10 Acknowledgement I express my gratitude to the Rockefeller Foundation in New York for its award of scholarly residency to me at its prestigeous Bellagio Study and Conference Centre in Italy, to complete this book. This unique opportunity enabled me to accomplish the work quickly. I also express my thanks to Professor Fahim Khan of the International Centre for Research in Islamic Economics, King Abdulaziz University, Jeddah, for allowing me to include one of his valuable contributions in my book. I also express my thanks to those publishers who have given me permission to reproduce my earlier contributions in this book. Each of them has been duly acknowledged in the appropriate notes. MASUDUL ALAM CHOUDHURY XI

11 Preface This book is intended to fulfil the requirement for a systematic presentation of Islamic economics as a special case of social economics, and extending thus, the methodologies of mainstream economics. The book thereby contains a list of chapters and topics in each of the sections on Principles, Microeconomics, Macroeconomics and a Postscript, which in an integrated way, convey the theory of Islamic economics within the well-known framework of mainstream economics. The methodology used in each of the chapters is rigorously analytical, combining a discussive, geometric and mathematical approach, and extending it to the analysis of factors that may be of a purely economic nature or of a socioeconomic nature. Thus, a blending between the mainstream and social approaches to economic analysis. The book is also a work in normative economics, as it develops and systematically presents the theory of Islamic economics based on its fundamental sources, the Quran (Holy Book of Muslims), Sunnah (Traditions of Prophet Muhammad) and ijtehad (authoritative Islamic research). Social economics and mainstream economics are today competing views of a new wave of thought on the economics of the future. The need for re-examining the age-long postulates, approaches and objectives of conventional economics is pressing today because of the adverse cyclical problems of recession and the fears of uncertainty in attaining sustained growth over the long run. Equally, the inequitable distribution of economic opportunities within a given society as well as among the nations of the world, caused by the existing economic institutions, has seriously put to question the very foundations of conventional economics, namely, the philosophy ofthe welfare state and the good society. The patchwork policing of the mainstream economists following the Keynesian tradition of short run analysis is failing in popularity among many today. In the unsettled milieu of controversies the social economists have stepped in to propound a new theory of economics. It would rely on factors that are both of a purely economic as well as of a non-economic nature, such as philosophy, religion and value judgements. The result would be to formulate a political economy of social xiii

12 xiv Preface policy, which the social economists think would be more conducive for the advance of mankind towards the Good Society. Islamic economics can be considered as a special case of social economics. It represents an approach to economic analysis that is strictly steeped on the premiss of shariah or Islamic law as it pertains to social, economic and legal matters confronting the Islamic society. The theory of Islamic economics is the logical explanation of the workings of the Islamic religious elements in economic matters. While this theory emanates basically from the fundamental religious sources of the Islamic faith, that is, Quran, Sunnah and ijtehad, the principles, assumptions, functions and goals of the Islamic economic order are universal in nature. They are thus amenable for a thorough scientific investigation. This book purports to bring this out in the following pages. It is therefore hoped that this book will meet the need of a textbook for students and academics undertaking a serious study of Islamic economics, social economics, history of economic thought and comparative economic systems. The book would serve as a reference material in these areas of economics. It will also be of interest to professionals in international development institutions, national government offices, corporations and businessmen, who are quite often involved in dealing with their counterparts in the Arab Gulf countries. To them this book will introduce the economic philosophy of some major institutions in the Arab Gulf region, such as the Islamic banks, Dar al-mal-al-islami (Geneva), the Islamic Development Bank, Kuwait Finance House, joint ventures and profit-sharing projects in Saudi Arabia and so on. Part I of the book deals with principles. It delineates the general nature of the Islamic social sciences. It then builds upon this the definition, principles and methodological approach of the theory of Islamic economics. Part II further builds upon the principles of Islamic economics in the area of mainstream microeconomics. Thus, we have a chapter on: consumer demand, pricing theory of the firm, financial theory of the firm, resource allocation, principles of economic decision-making at the levels of the firm, the organisation and the state, valuation of the firm and a formulation of Islamic welfare economics. Part III constitutes the logical extension of Part II in the area of mainstream macroeconomics. We have integrated this section by a chapter on: the Islamic investment theory, the Islamic consumption theory, and the general equilibrium macroeconomic system.

13 Preface xv Part IV constitutes the Postscript on a methodological development of Islamic economics as a rational economic theory. This section brings together the foundations of microeconomic theory and macroeconomic theory to establish the existence of a general equilibrium in the ethicoeconomic field. This ethico-economic field is made up of a consumption set, a production set, and both being determined by a well-defined ethical set in the first place. The social welfare theory then follows as a result of the analysis in the ethico-economic equilibrium field. The four parts of the book are integrated together to present a coherent and logical development of the main topics of Islamic economic theory. However, while the area of Islamic economics still denotes a humble beginning, particularly as a study in economic analysis, any work in this area at this stage is subject to an immense possibility of improvement and development. This is indeed true of any book in the ever-moving realm of economic analysis. The singular contribution of this book could be that it presents, for the first time, a systematic and self-contained work on the theory of Islamic economics as a special branch of social economics, acquired within the general methodology of mainstream economics.

14 List of Meanings of Arabic Transliteration ARABIC TRANSLITERATIONS akhira al-hisbah al-afw Bait ai-mal Dar -al-mal-al-islami fai fidth fiqh ghanimah hadith (plural: ahadith) halal haram ibadah ihsan ijma ijtehad islah israf kharaj khilafah MEANING knowledge of the Divine Judgement to follow after life an Islamic institution that promotes common goodliness among individuals in an Islamic society Quranic injunction to spend out of what is left over after meeting ones needs public treasury in an Islamic state an Islamic finance company based in Geneva, Switzerland property acquired in war without fighting part of fai whose mode of distribution in society is similar to zakah (see below) Islamic legal study based on original sources war booty sayings of the Prophet Muhammad Islamically permissible Islamically forbidden Islamic worship of God Islamic ethical perfection acceptance of the findings of ijtehad by the Muslim community at large authoritative Islamic research righteousness and benefits to human societies wasteful consumption tax on land conquered during war man's vicegerency in the universe xvi

15 List of Meanings of Arabic Transliteration XVll la israf mafasid maqasid alshariah masalih mua'malat mudarabah muhtasib musharakah (also masharakah) nisab (an-nisab) qard-i-hasan Quran riba risalah rububiyyah sadaqah salah (also salat) shariah shirakah shura sunnah taqwa tawheed ulema ushr waqf zakah (zakat) not to consume in waste total cost the basis of an integrative and systematic approach to Islamic values total benefit affairs of the world Islamic principle of profit-sharing in business enterprise man in charge of running the al-hisbah institution Islamic profit- and risk-sharing principle in joint ventures a minimum exemption level for the levy of zakah (see below) loan without interest holy book of the Muslims interest on capital (surplus value) Islamic concept of prophethood sole proprietorship of the means of production Islamic voluntary charity Islamic prayer Islamic law see musharakah Islamic consultation traditions and instructions of the Prophet Muhammad Godfearingness unity of God doctors of Islamic law Zakah on crops (see below) property endowment for usage in Islamic causes a capital and wealth tax levied on individual Muslims having savings and assets valued above the nisab level of exemption

THE FOUNDATIONS OF ISLAMIC POLITICAL ECONOMY

THE FOUNDATIONS OF ISLAMIC POLITICAL ECONOMY Also by Masudul A/am Choudhury and published by Palgrave Macmillan CONTRIBUTIONS TO ISLAMIC THEORY ISLAMIC ECONOMIC CO-OPERATION THE PRINCIPLES OF ISLAMIC POLITICAL