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All Journal Jurnal Ekonomi Pembangunan Bukhori: Kajian Ekonomi dan Keuangan Islam
Heryani, Devy Septi
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Decision Sciences, Operations Research & Management Economics, Econometrics & Finance

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Economic Efficiency and Policy Implications of Public-Private Partnership in Urban Water Supply Heryani, Devy Septi; Nurhetti, Nurhetti
Jurnal Ekonomi Pembangunan Vol 13 No 3 (2024): Volume 13 Nomor 3 Tahun 2024
Publisher : Fakultas Ekonomi dan Bisnis Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jep.v13i3.4170

Abstract

This study investigates the role of Public-Private Partnership (PPP) in enchancing economic efficiency in urban water supply and explrores the policy for sustainable service delivery in Bandar Lampung, Indonesia. Aquantitative approach was applied using Data Envelopment Analysis (DEA) to measure efficiency, regression analysis to test determinants of efficiency and Partial Least Square-Structural Equation Modeling (PLS-SEM) to examine the relationships between PPP implementation, public policy, efficiency, and sustainable water service delivery. The result show that PPP significantly improves economic efficiency, although performance varies across periods. Public policy is found to have a direct and indirect influence on service sustainability through efficiency. The mediation effect highlights thet efficiency is a critical mechanism linking policy intervention and long-tem service outcomes.
Indonesia–Malaysia Export-Import and Islamic Economic Growth Heryani, Devy Septi; Nurheti, Nurheti
Bukhori: Kajian Ekonomi dan Keuangan Islam Vol 5 No 2 (2026): January
Publisher : Penerbit Goodwood

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35912/bukhori.v5i2.5333

Abstract

Purpose: This study analyzes the contribution of exports and imports to Gross Domestic Product (GDP) from an Islamic economics perspective, using a comparative study between Indonesia and Malaysia (2019–2024). Methodology/approach: A quantitative approach using panel data regression analyzes annual secondary data from BPS, DOSM, and the World Bank through OLS, FEM, and REM, with the best model determined by the Hausman test. Results/findings: The study finds that exports and imports together significantly affect national income in both countries. The Random Effects Model (REM) is the most suitable, with an R² of 0.997. From an Islamic economic perspective, halal and productive exports are commendable as they reflect maslahah and ikhtiar, while productive imports are permissible but consumption-driven imports should be regulated to maintain istiqlal (economic independence). Conclusions: Simultaneous export and import activities significantly affect both countries’ national income, though individually insignificant. In Islamic economics, productive exports are encouraged, and productive imports are allowed as long as they do not undermine the ummah’s economic independence. Limitations: The study spans six years and two countries, limiting analytical significance, and excludes key variables such as investment, fiscal policy, and political stability. Contribution: This study enriches the literature by integrating empirical trade analysis with Islamic principles, providing insights for policymakers to develop value-based trade strategies that foster ethical growth and economic sovereignty.
Co-Authors Nurheti, Nurheti Nurhetti, Nurhetti