Vol. 16 No. 1 (2026)

For this edition, the authors are coming from Indonesia, Poland, Spain, Taiwan, Tanzania and Malaysia

Published: 2026-04-01

Articles

Gorontalo city's strategy as a plastic waste-free coastal city 2030: Qualitative SWOT analysis and blue economy

👥 Kalzum R Jumiyanti⁽¹⁾★, Silviana Taniu⁽²⁾, Anggita Permata Yakup⁽³⁾, Dewi Walahe⁽⁴⁾

(1) Universitas Gorontalo
(2) Universitas Gorontalo
(3) Universitas Gorontalo
(4) Universitas Gorontalo
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📈 Abstract : 252 📥 PDF : 219

DOI 10.12928/optimum.v16i1.14789 📄 1-15
The dynamics of micro and small industries and poverty: A geographical perspective with panel data evidence

👥 Dinar Melani Hutajulu⁽¹⁾, Fera Febriana Sritutur⁽²⁾★, Maulia Siti Mukharohmah⁽³⁾, Putri Nisrina Damayanti⁽⁴⁾, Aini Fadhilah Dzakirah⁽⁵⁾

(1) Universitas Tidar
(2) Universitas Tidar
(3) Universitas Tidar
(4) Universitas Tidar
(5) Universitas Tidar
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📈 Abstract : 187 📥 PDF : 178

DOI 10.12928/optimum.v16i1.14925 📄 16-29
Sustainable development challenges in Indonesia: A macroeconomics approach to finance, energy, and environment

👥 Muhammad Firmansyah⁽¹⁾★, Immanuel Mu’ammal⁽²⁾, Stanislaw Flejterski⁽³⁾, Jose Antonio Lopez Castro⁽⁴⁾

(1) Universitas Muhammadiyah Malang
(2) Universitas Muhammadiyah Malang
(3) WSB Merito University, Polandia
(4) University of Cordoba
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📈 Abstract : 204 📥 PDF : 195

DOI 10.12928/optimum.v16i1.14765 📄 30-43
The role of digitalization in the business turnover of women owned textile MSMEs in traditional markets: Evidence from Klewer market, Surakarta

👥 Danur Condro Guritno⁽¹⁾★, Anisya Nur Widya⁽²⁾, Aulia Hapsari Juwita⁽³⁾, Rakhmundia Aryo⁽⁴⁾

(1) Department of Economics, Universitas Sebelas Maret, Indonesia
(2) Department of Economics, Universitas Sebelas Maret, Indonesia
(3) Department of Economics, Universitas Sebelas Maret, Indonesia
(4) Department of International Business, National Dong Hwa University, Republic of China
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📈 Abstract : 153 📥 PDF : 164

DOI 10.12928/optimum.v16i1.14563 📄 44-54
The transition from exhaustible to renewable resources: Investigating the dynamic effect of natural resources and monetary liquidity on consumption of renewable energy

👥 Hassan Swedy Lunku⁽¹⁾★, Felix Exavery Tebo⁽²⁾, Costantine Felix Masanyiwa⁽³⁾

(1) Local Government Training Institute, Dodoma, Tanzania
(2) Local Government Training Institute, Tanzania
(3) Local Government Training Institute, Tanzania
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📈 Abstract : 147 📥 PDF : 111

DOI 10.12928/optimum.v16i1.15166 📄 55-75
The impact of fiscal decentralization on tourism development in Java Island: A study of district/city level data

👥 Jihan Lyra Vhina⁽¹⁾, Al Muizzuddin Fazaalloh⁽²⁾★

(1) Universitas Brawijaya
(2) Universitas Brawijaya
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📈 Abstract : 182 📥 PDF : 148

DOI 10.12928/optimum.v16i1.15196 📄 76-86
Reducing property valuation bias through random forests: Predicting prices for public asset optimization

👥 Edy Riyanto⁽¹⁾★, Imanishi Dwi Alfianyah⁽²⁾

(1) Politeknik Keuangan Negara (PKN) STAN
(2) Directorate General of State Assets Management (DJKN), Ministry of Finance of the Republic of Indonesia
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📈 Abstract : 153 📥 PDF : 170

DOI 10.12928/optimum.v16i1.13186 📄 87-94
Export efficiency and determinants of Indonesian spices exports to major destination countries

👥 Maya Aulia Ardini⁽¹⁾, Fahmi Salam Ahmad⁽²⁾★, Syarifah Amaliah⁽³⁾

(1) Department of Economics, IPB University
(2) Department of Economics, IPB University
(3) Department of Economics, IPB University
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📈 Abstract : 149 📥 PDF : 143

DOI 10.12928/optimum.v16i1.14725 📄 95-106
Downstream policy in Indonesia: Does it support energy security?

👥 Misbahol Yaqin⁽¹⁾★, M. Silahul Mu'min⁽²⁾

(1) University of Jember
(2) Ministry of Manpower of the Republic of Indonesia
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📈 Abstract : 126 📥 PDF : 127

DOI 10.12928/optimum.v16i1.15575 📄 107-121
PESTEL analysis of green tourism development based on Lumbung Mataraman: Comparative study of Bantul and Kulon Progo regencies

👥 Unggul Priyadi⁽¹⁾★, Jannahar Saddam Ash Shidiqie⁽²⁾, Alivia Rianti Putri⁽³⁾

(1) Universitas Islam Indonesia
(2) Universitas Islam Indonesia
(3) Universitas Islam Indonesia
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📈 Abstract : 149 📥 PDF : 152

DOI 10.12928/optimum.v16i1.15134 📄 122-137
Pandemic shocks and time-varying weak-form efficiency in ASEAN foreign exchange markets: An empirical investigation

👥 Saizal Pinjaman⁽¹⁾, Sook Ching Kok⁽²⁾, Sarma Aralas⁽³⁾, Agus Tri Basuki⁽⁴⁾, Syamsul Hadi⁽⁵⁾, Pazri Nugraha⁽⁶⁾, Susilo Nur Aji Cokro Darsono⁽⁷⁾★

(1) University Malaysia Sabah
(2) University Malaysia Sabah
(3) University Malaysia Sabah
(4) Universitas Muhammadiyah Yogyakarta
(5) Universitas Sarjanawiyata Tamansiswa
(6) Universitas Muhammadiyah Yogyakarta
(7) Universitas Muhammadiyah Yogyakarta
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📈 Abstract : 155 📥 PDF : 153

DOI 10.12928/optimum.v16i1.15560 📄 138-147
An analysis of income inequality in eight regencies and cities in Banten using panel data

👥 Muhammad Hanif Mufid⁽¹⁾, Dini Yuniarti⁽²⁾, Rifki Khoirudin⁽³⁾★

(1) Universitas Ahmad Dahlan
(2) Universitas Ahmad Dahlan
(3) Universitas Ahmad Dahlan
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📈 Abstract : 132 📥 PDF : 137

DOI 10.12928/optimum.v16i1.15055 📄 148-159
The role of imports, exchange rates, and reserve stability in driving Indonesia’s export performance

👥 Azmi Fawwaz Syahrullah⁽¹⁾★, Adang Djatnika Effendi⁽²⁾, Herry Sutanto⁽³⁾

(1) Universitas Islam Negeri Sunan Gunung Djati Bandung
(2) Universitas Islam Negeri Sunan Gunung Djati Bandung
(3) Universitas Islam Negeri Sunan Gunung Djati Bandung
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📈 Abstract : 160 📥 PDF : 192

DOI 10.12928/optimum.v16i1.15536 📄 160-169
Macroeconomic determinants on fossil fuel energy consumption in six ASEAN countries

👥 Dwi Silfani⁽¹⁾★, Noni Rozaini⁽²⁾

(1) Universitas Negeri Medan
(2) Universitas Negeri Medan
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📈 Abstract : 152 📥 PDF : 127

DOI 10.12928/optimum.v16i1.15867 📄 170-179
Comparative analysis of leading and lagging techniques in investment strategies

👥 Detri Heri Gemita⁽¹⁾★, Muchriana Muchran⁽²⁾, Mira Mira⁽³⁾

(1) Universitas Muhammadiyah Makassar
(2) Universitas Muhammadiyah Makassar
(3) Universitas Muhammadiyah Makassar
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📈 Abstract : 130 📥 PDF : 119

DOI 10.12928/optimum.v16i1.13641 📄 180-189