UNIVERSITI PUTRA MALAYSIA TESTING THE ARBITRAGE PRICING THEORY ON THE TEHRAN STOCK EXCHANGE POOYA SABETFAR FEP 2011 19 IG H T U PM TESTING THE ARBITRAGE PRICING THEORY ON THE TEHRAN STOCK EXCHANGE © C O PY R POOYA SABETFAR DOCTOR OF PHILOSOPHY UNIVERSITI PUTRA MALAYSIA 2011 U PM TESTING THE ARBITRAGE PRICING THEORY ON THE TEHRAN STOCK EXCHANGE H T By C O PY R IG POOYA SABETFAR © Thesis Submitted to the School of Graduate Studies, Universiti Putra Malaysia, in Fulfillment of the Requirements for the Degree of Doctor of Philosophy July2011 To My dear Parents, who always like to see me in PhD degree, My supportive husband Reza and, © C O PY R IG H T U PM My Cute Son Eliya ii Abstract of thesis presented to the Senate of Universiti Putra Malaysia in fulfillment of the requirement for the degree of Doctor of Philosophy PM TESTING THE ARBITRAGE PRICING THEORY ON THE TEHRAN STOCK EXCHANGE By Chair: Cheng Fan Fah, PhD IG H Faculty: Economics and Management T July 2011 U POOYA SABETFAR The equilibrium-pricing model using Arbitrage Pricing Theory (APT) has become one R of the central models of modern financial theory. However, the APT is too general in PY determining the factors which influences expected returns. Many empirical studies on the APT have already been conducted in free enterprise systems but, no attention has been given in full Sharia compliant close economy. Since there was no previous O research on the study of APT in full Sharia compliant sanction economy, an empirical C support for the APT by employing macroeconomic variables in Tehran Stock Exchange (TSE) which works in full Sharia compliant sanction economy was examined as the © main objective of the research. However, this study identifies the macroeconomic variables that may have significant high impact on the stock market returns in the arbitrage pricing relationship. Also, this research aims to see whether economical and financial sanctions adversely affect stock market returns. This study undertakes to iii identify the number of common factors, priced factors and the macroeconomic variables that significantly affect on TSE by employing factor analysis with principal component method from 1991-2008. Canonical Correlation Analysis (CCA) is also used to see PM effect of macroeconomic variables on stock returns in TSE. In this study, all the procedure is done by using individual security and grouping according to different size U of portfolios separately. The evidence points to at least one factor to three factors that explain the cross-section T of expected returns in TSE from 1991-2008. Financial and economical sanctions are H affecting stock market returns and the negative sign of coefficients show the opposite IG reaction of investors to the announcement of sanctions in TSE. The principal component analysis results suggest that there are four groups of macroeconomic R variables in the test period that affect stock returns. According to CCA results in the PY samples, the sources of systematic risk in the period are export of the crude oil and interest rate proxy in TSE. O The results show the validly but, weak applicability of APT to estimate expected C returns of the securities in full Sharia closed economy. Nevertheless, the macroeconomic variables that influence stock market returns change over time in © Iranian context. This probably is a typical aspect of sanctioned market. The results also recommend the dissimilar strategies are needed to invest successfully in Iran because it is more sensitive to sanctions and different macroeconomic variables. iv Abstrak tesis yang dikemukakan kepada Senat Universiti Putra Malaysia sebagai memenuhi keperluan untuk ijazah Doktor Falsafah PM UJIKAJI TEORI ARBITRAJ HARGA KE ATAS BURSA SAHAM TEHRAN Oleh T Julai 2011 IG H Pengerusi: Cheng Fan Fah, PhD Fakulti: Ekonomi dan Pengurusan U POOYA SABETFAR R Model keseimbangan-harga dengan menggunakan Arbitrage Pricing Theory (APT) telah menjadi salah satu model utama teori kewangan moden. Namun begitu, APT adalah PY terlalu umum untuk menentukan faktor yang mempengaruhi jangkaan pulangan. Banyak kajian empirikal terhadap APT telah dijalankan dalam sistem perdagangan bebas tetapi O tiada perhatian yang diberikan kepada ekonomi tertutup yang sepenuhnya mematuhi Syariah. Memandangkan belum ada lagi kajian APT yang dilakukan terhadap ekonomi C yang sepenuhnya mematuhi Syariah, kajian ini memenuhi jurang di dalam penyelidikan dengan membawa objektif utama bagi membina sokongan empirikal untuk APT © menggunakan pembolehubah ekonomi makro di Bursa Saham Tehran (TSE) yang beroperasi di dalam ekonomi tertutup yang sepenuhnya mematuhi Syariah. Kajian ini mengenalpasti pembolehubah makroekonomi yang mungkin membawa kesan ketara yang tinggi ke atas pulangan di bursa saham di dalam hubungan harga arbitraj. Kajian v ini juga bermatlamat untuk mengkaji samada sekatan-sekatan ekonomi dan kewangan memberi kesan buruk kepada pulangan di bursa saham. Penyelidikan ini dilakukan untuk mengenal pasti beberapa faktor umum, faktor harga dan pembolehubah ekonomi PM makro yang secara signifikannya mempengaruhi TSE dengan menggunakan analisis faktor dengan kaedah komponen utama untuk jangkamasa dari tahun 1991 hingga ke tahun 2008. Canonical Correlation Analysis (CCA) juga digunakan untuk melihat kesan U pembolehubah ekonomi makro terhadap pulangan saham di TSE. Di dalam kajian ini, kesemua prosedur dijalankan dengan menggunakan sekuriti individu dan berkumpulan H T secara berasingan mengikut saiz portfolio yang berbeza. IG Bukti menunjukkan sekurang-kurangnya terdapat antara satu hingga tiga faktor yang menjelaskan lintas-bahagian jangkaan pulangan di TSE untuk jangkamasa dari tahun R 1991 hingga ke tahun 2008. Sekatan-sekatan kewangan dan ekonomi mempengaruhi PY pulangan di pasaran saham dan tanda angkali negatif menunjukkan reaksi berlawanan pelabur terhadap pengumuman sekatan di TSE. Keputusan analisis komponen utama mencadangkan bahawa terdapat empat kumpulan pembolehubah ekonomi makro dalam C O tempoh ujian yang mempengaruhi pulangan saham. Berdasarkan keputusan-keputusan CCA terhadap sampel kajian, sumber risiko © sistematik untuk jangkamasa kajian adalah eksport minyak mentah dan proksi kadar faedah di TSE. Keputusan-keputusan kajian mengesahkan aplikasi APT yang lemah untuk menganggarkan jangkaan pulangan sekuriti di dalam ekonomi tertutup yang sepenuhnya mematuhi Syariah. Namun begitu, pembolehubah ekonomi makro yang vi mempengaruhi pulangan pasaran saham sentiasa berubah dari masa ke semasa di Iran. Ini mungkin merupakan aspek umum bagi sesebuah pasaran yang disekat. Keputusan-keputusan juga mengesyorkan bahawa strategi yang berbeza PM diperlukan untuk mendapatkan pelaburan yang berjaya di Iran kerana ia lebih peka © C O PY R IG H T U terhadap sekatan dan terhadap pembolehubah ekonomi makro yang berbeza. vii ACKNOWLEDGEMENT Many people assisted me in conducting this research that I could never adequately thank them all. First and foremost, I would like to acknowledge my PM deepest gratitude to Associate professor Dr. Cheng Fan Fah, my supervisor for his great considerations, invaluable comments, and keen suggestions throughout the study U and preparation of the thesis. Special thanks and admiration are due also to the other members of my supervisory committee, Professor Dr. Shamsher Mohamad, Associate T professor Dr. Bany Ariffin and Associate professor Dr. Sazali Zainal Abidin for their H helping and advanced insights into the study. I would also like to express my sincere appreciation to Professor Dr. Mohammad Ariff and Associate professor Dr. Taufiq R IG Hassan for their contribution on this thesis. I would like to express my thanks to my family members, especially my mother and PY my brother, Sina, for their continual love and support over the years and for giving O me the confidence in myself to go after my dreams. I love you. C I would like to express my love to my husband, Reza, who have given me a peaceful refuge whenever the problems of the thesis seemed beyond me. He has been a source of © encouragement and support throughout this study and I wish to thank Reza for his love and support. Last, but not least, I wish to express my thanks and love to my cute son, Eliya, who at age four didn’t understand what Arbitrage Pricing Theory was but who has tried to be patient when I retreated to my study to write the thesis. Thank you for being my best friends. viii APPROVAL PM I certify that an Examination Committee met on 18 of July 2011 to conduct the final examination of Pooya Sabetfar on her Doctor of Philosophy thesis entitled “ Testing the Arbitrage Pricing Theory on the Tehran Stock Exchange” in accordance with Universities and University college Act 1971 and the Constitution of the Universiti Putra Malaysia [P.U.(A) 106] 15 March 1998. The Committee recommends that the candidate be awarded the Doctor of Philosophy. Members of the Examination Committee are as follows: T H IG Annuar b Md Nasir, PhD Professor Faculty of Economics and Management Universiti Putra Malaysia (Internal Examiner) U Muzafar Shah Habibullah, PhD Professor Faculty of Economics and Management Universiti Putra Malaysia (Chairman) PY R Law Siong Hook, PhD Associate Professor Faculty of Economics and Management Universiti Putra Malaysia (Internal Examiner) © C O Rezaul Kabir, PhD Professor School of Management and Governance University of Twente The Netherlands, United Kingdam (External Examiner) -----------------------------------------------NORITAH OMAR, PhD Assoc. Professor and Deputy Dean School of Graduate Studies Universiti Putra Malaysia Date ix This thesis is submitted to the Senate of Universiti Putra Malaysia and has been accepted as fulfillment of the requirement for the degree of Doctor of Philosophy. The members of the Supervisory Committee were as follows: PM Cheng Fan Fah, PhD Associate Professor Faculty of Economics and Management Universiti Putra Malaysia (Chairman) T H IG Bany Ariffin Amin Noordin, PhD Associate Professor Faculty of Economics and Management Universiti Putra Malaysia (Member) U Shamsher Mohamad Ramdili Mohd, PhD Professor Faculty of Economics and Management Universiti Putra Malaysia (Member) © C O PY R Sazali Zainal Abidin, PhD Associate Professor Waikato Management School University of Waikato Hamilton, New Zealand (Member) -----------------------------------------------HASSAN MOHD GHAZALI, PhD Professor and Dean School of Graduate Studies Universiti Putra Malaysia Date x DECLARATION PM I declare that the thesis is my original work except for quotations and citations which have been duly acknowledged. I also declare that it has not been previously, and is not concurrently, submitted for any other degree at Universiti Putra Malaysia or at any other institution. U ________________________ POOYA SABETFAR © C O PY R IG H T Date: 18 July 2011 xi TABLE OF CONTENTS Page iii v viii ix xi xv xvi xvii U PM ABSTRACT ABSTRAK ACKNOWLEDGEMENT APPROVAL DECLARATION LIST OF TABELS LIST OF FIGURES LIST OF ABBREVIATIONS CHAPTER T INTRODUCTION 1.1 Background of the Study 1.2 Statement of the Problem 1.3 Objectives of the Study 1.4 Significance and Justification of the Study 1.5 Contributions of the Study 1.6 Scope of the Study 1.7 Plan of the Study OVERVIEW OF IRAN ECONOMY, ISLAMIC ECONOMY AND TEHRAN STOCK EXCHANGE 2.1 Introduction 2.2 Section One: Iran Economy 2.2.1 Overview of Iran Economy 2.2.2 Iran’s Economic Policy and Reform Effort 2.2.3 Iran’s Economic Sectors 2.2.4 Impact of World Sanctions on Iranian Economy O PY 2 R IG H 1 © C 2.3 2.4 Section Two: Islamic Economy 2.3.1 The Sharia Law 2.3.2 Comparison Between Islamic Economy System and Capitalism Economy System 2.3.3 Functions, Structure and Performance of a Stock Exchange in an Islamic Economy Section Three: Tehran Stock Exchange Market 2.4.1 Introduction 2.4.2 Definition of Stock Exchange Market 2.4.3 History of Stock Exchange Market In The World 2.4.4 History of Tehran Stock Exchange 2.4.5 Tehran Stock Exchange Market Before the Revolution 1 4 8 10 12 13 14 15 17 17 20 22 26 32 33 36 39 42 42 42 43 45 46 xii 2.5 2.6 THEORETICAL FRAMEWORK 3.1 Introduction 3.2 Theories and Methods of Estimation of Asset Pricing Model 3.2.1 Mean-Variance Theorem 3.2.2 Capital Asset Pricing Model (CAPM 3.2.3 Arbitrage Pricing Theory (APT) 3.3 The Comparison between the APT and the CAPM 3.4 General Disagreements and Contradictions of the APT 3.5 Methods of Analysis in APT 3.5.1 Macro-Economic Variables Model 3.6 APT Regression Methods 3.7 Concluding Remark 50 55 57 METHODOLOGY 5.1 Introduction 5.2 Analysis Period 5.3 Criterion Variables 5.3.1 Selection of Macroeconomic Variables 5.4 Research Design 5.4.1 Factor Analysis and Principal Component Analysis 5.4.2 Test of the Arbitrage Pricing Theory 5.4.3 Canonical Correlation Analysis 5.5 Econometric Issues 5.5.1 Multicollinearity 5.5.2 Heteroskesdasticity 5.6 Hypothesis Generation 5.7 Concluding Remark 106 107 109 111 118 119 122 125 130 130 131 132 133 RESULTS AND DISCUSSIONS 6.1 Introduction 6.2 Descriptive Statistics 6.2.1 Security Returns 6.2.2 Macroeconomic Variables 6.3 Factor Analysis 6.3.1 Sixty Individual Securities 135 136 136 137 139 139 IG 83 83 105 © C O PY 5 6 60 61 61 63 66 68 70 71 73 79 81 LITRATURE REVIEW 4.1 Introduction 4.2 Evidence and State of the Knowledge 4.3 Concluding Remark R 4 H T U PM 3 of Iran 2.4.6 Tehran Stock Exchange Market After the Revolution of Iran Iran’s position between Middle East Regions Concluding Remark xiii 6.3.2 6.3.3 6.3.4 6.3.5 6.3.6 Twenty Portfolios Fifteen Portfolios Ten Portfolios Five Portfolios Factor Analysis for Stock Returns -Discussion 6.4 Principal Component Factor Analysis: A Discussion 141 142 143 143 144 PM 146 Number of the Common Factors Cross-Sectional Regression of Mean Returns against Factor Loadings 6.5 The Factor Structure of the Iranian Economy 6.5.1 Principal Component Scores of Iranian Economy in the Period 6.5.2 Principal Component Scores of Iranian EconomyDiscussion 6.6 Relationship between Stock Market Returns and Macroeconomic Variables 6.6.1 Canonical Correlation Analysis in the 17-Year Full Period 6.7 Concluding Remark 146 148 151 152 154 154 155 167 SUMMERY, GENERAL CONCLUSION AND RECOMMENDATION FOR FUTURE RESEARCH Introduction Main Finding Limitation of the Study Implications of the Study Suggestion for Further Research PY 7.1 7.2 7.3 7.4 7.5 R 7 IG H T U 6.4.1 6.4.2 182 196 227 228 © C O REFERENCES APPENDICESS BIODATA OF STUDENT LIST OF PUBLICATIONS 169 170 176 178 181 xiv