The Journal is published by Faculty of Shariah and Law Syarif Hidayatullah State Islamic University Jakarta in cooperation with The Indonesian Association of Islamic Economist. This journal focused on Islamic Economics and Finance studies. The Journal is published twice a year on January and July. The journal is accredited by the Directorate General of Higher Education Ministry of National Education and Culture The Republic of Indonesia No. 040/P/2014 Editor in Chief M. Nur Rianto Al Arif Associate Editor Maman Rahman Hakim Sofyan Rizal A Chairul Hadi Yuke Rahmawati English Editor Ummi Kultsum Editorial Advisory Board Abbas Mirakhor (INCEIF, Malaysia) Ahmad Hidayat Buang (University of Malaya, Malaysia) Ahmad Tholabi Kharlie (UIN Syarif Hidayatullah Jakarta, Indonesia) Amir Kia (Utah Valley University, USA) Asep S. Jahar (UIN Syarif Hidayatullah Jakarta, Indonesia) Ashraf MD Hasyim (ISRA, Malaysia) Fathurrahman Djamil (UIN Syarif Hidayatullah Jakarta, Indonesia) M. Kabir Hassan (University of New Orleans, USA) Mehmet Asutay (Durham University Business School, UK) Mervyn K Lewis (University of South Australia, Australia) Mohammad Hudaib (Adam Smith Business School, Glasgow Univ., United Kingdom) Mohamed S Komi (The American University in Cairo, Egypt) Mokhamad Anwar (University of Padjajaran, Indonesia) Monzer Khaf (Qatar Faculty of Islamic Studies, Qatar) Muhammad Amin Suma (UIN Syarif Hidayatullah Jakarta, Indonesia) Mustafa Edwin Nasution (University of Indonesia –Indonesia) Ratno Purnomo (Jenderal Soedirman University, Indonesia) Roszaini Haniffa (Heriot Watt University, United Kingdom) Sadegh Bakhtiari (Isfahan University, Islamic Republic of Iran) Walid Mansour (King Abdulaziz University, Saudi Arabia) Volume 8 (2) July 2016 AL-IQTISHAD Jurnal Ilmu Ekonomi Syariah (Journal of Islamic Economics) Editorial Office Faculty of Shariah and Law UIN Syarif Hidayatullah Jakarta, Indonesia Jl. Ir. H. Juanda 95, Ciputat, South Tangerang, Banten, Indonesia -15412- Phone (+6221) 74711537, Fax. (+6221) 7491821 Website: www.journal.uinjkt.ac.id/index.php/iqtishad; Email: iqtishad@uinjkt.ac.id CONTENTS 169 Effectiveness of Zakah Targeting in Alleviating Poverty in Indonesia Rahmatina A Kasri 187 Determinants of Liquidity Risk in Indonesian Islamic and Conventional Banks Raditya Sukmana, Sari Suryaningtyas 201 The Patronage Behaviour of Islamic Bank’s Customer: Empirical Studies in Aceh M Shabri Abd Majid, Said Zulhanizar 213 The Efficiency of Zakah Institutions Using Data Development Analysis Aam Slamet Rusydiana, Salman Al-Farisi 227 The Effect of Social Capital on Customer’s Repayment Rate at Islamic Microfinance Institution Jaenal Effendi, Annisa Rindra Utami 243 Shari’a Compliant E-Commerce Models and Customer Trust Muhammad Kholifatul I Ardiansyah, Yunizar, Budi Harsanto 255 Risk and Return: Bonds and Sukuk in Indonesia Ahmad Rodoni, Aris Setiawan 271 Islamic Prayer, Spirituality and Productivity: An Exploratory Conceptual Analysis M Ashraf Al Haq, Norazlina Abd Wahab, Hj Abdullah Abd Ghani, Nor Hayati Ahmad 287 Islamic Banks Service Innovation Quality: Conceptual Model Tahreem Noor Khan 307 Determinants of The Corporate Environmental Disclosure: Study on Jakarta Islamic Index Yulianti, Leis Suzanawaty, Zuwesty Eka Putri, Ismawati Haribowo