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All Journal Jurnal Riset Ekonomi & Bisnis Journal of Economics, Business, & Accountancy Ventura JMM17: Jurnal Ilmu Ekonomi dan Manajemen Media Trend: Berkala Kajian Ekonomi dan Studi Pembangunan Jurnal Pamator : Jurnal Ilmiah Universitas Trunojoyo Madura EKOMBIS REVIEW: Jurnal Ilmiah Ekonomi dan Bisnis Jurnal Progres Ekonomi Pembangunan Briliant: Jurnal Riset dan Konseptual Jurnal EMT KITA Jurnal Ilmiah Universitas Batanghari Jambi Jurnal Ekonomi Pembangunan STIE Muhammadiyah Palopo Journal of Economic, Bussines and Accounting (COSTING) MITRA: Jurnal Pemberdayaan Masyarakat KACANEGARA Jurnal Pengabdian pada Masyarakat Jambura Equilibrium Journal Jurnal Pelayanan dan Pengabdian Masyarakat (Pamas) Kumawula: Jurnal Pengabdian Kepada Masyarakat International Journal of Economics, Business and Accounting Research (IJEBAR) JASF (Journal of Accounting and Strategic Finance) Journal of Economics, Business, and Government Challenges Amalee: Indonesian Journal of Community Research & Engagement International Journal of Economics Development Research (IJEDR) PARETO : Jurnal Ekonomi dan Kebijakan Publik Abdimas Galuh: Jurnal Pengabdian Kepada Masyarakat RESLAJ: RELIGION EDUCATION SOCIAL LAA ROIBA JOURNAL Community Development Journal: Jurnal Pengabdian Masyarakat Oeconomicus Journal of Economics Jurnal Pengabdian kepada Masyarakat Nusantara Nusantara Science and Technology Proceedings Jurnal Ekuilnomi Multidiciplinary Output Research for Actual and International Issue (Morfai Journal) Jurnal Serambi Abdimas KARYA: Jurnal Pengabdian Kepada Masyarakat Unram Journal of Community Service (UJCS) JOURNAL OF HUMANITIES, SOCIAL SCIENCES AND BUSINESS (JHSSB) COVIT Journal Of Human And Education (JAHE) JDEP (Jurnal Dinamika Ekonomi Pembangunan) Journal of Economics Development Issues Journal of Community Service JAPI: Jurnal Akses Pengabdian Indonesia Curve Elasticity: Jurnal Pendidikan Ekonomi Literasi: Jurnal Pengabdian Masyarakat dan Inovasi Eduvest - Journal of Universal Studies e-Jurnal Apresiasi Ekonomi Engagement: Jurnal Pengabdian Kepada Masyarakat Management Analysis Journal eJEBA Jurnal Ekonomi dan Studi Pembangunan (JESP) IDEI: JURNAL EKONOMI & BISNIS
Martha Hendrati, Ignatia
Department Of Economic Development, Faculty Of Economic And Business, Universitas Pembangunan Nasional “Veteran” Jawa Timur
Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Medicine & Pharmacology Neuroscience Nursing Public Health Social Sciences Other

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Analisis Konsentrasi dan Struktur Pasar Industri Nikel Global Hendrartono, Danang Raihan; Hendrati, Ignatia Martha; Wardaya, Wirya
Jurnal EMT KITA Vol 10 No 3 (2026): JULY 2026
Publisher : Lembaga Otonom Lembaga Informasi dan Riset Indonesia (KITA INFO dan RISET) - Lembaga KITA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35870/emt.v10i3.6298

Abstract

This study analyzes the level of concentration and market structure of the global nickel industry over the 2014–2023 period using a descriptive quantitative approach by calculating the Herfindahl–Hirschman Index (HHI) based on global nickel export and import data (HS 7501) sourced from TradeMap. The results indicate that the global nickel market exhibits an oligopolistic–oligopsonistic structure, characterized by the dominance of a small number of countries. The export HHI increased to 3,021 in 2023, while the import HHI reached 3,347 in the same year, confirming a strengthening concentration of market power on both the supply and demand sides. Indonesia’s dominance as the main supplier and China’s position as the largest consumer reinforce market centralization and increase the sensitivity of nickel trade to industrial policies and geopolitical dynamics. These findings are consistent with international trade theory, which emphasizes the role of market structure in shaping trade patterns of strategic commodities, and they support the Structure–Conduct–Performance (SCP) framework that explains the linkage between concentrated market structures and the strategic behavior of dominant actors. This study underscores the importance of supply diversification and strengthened international trade cooperation to mitigate dependency risks in the global nickel industry.
ANALISIS MULTIPLIER PENGELUARAN PEMERINTAH TERHADAP KONTRIBUSI EKONOMI DI NEGARA-NEGARA G20 BERDASARKAN TEORI KEYNES Jalaluddin Iman Rahadianto; Ignatia Martha Hendrati; Wirya Wardaya
Curve Elasticity: Jurnal Pendidikan Ekonomi Vol 7 No 1 (2026): Curve Elasticity: Jurnal Pendidikan Ekonomi
Publisher : Universitas Nias Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57094/jpe.v7i1.4532

Abstract

The government plays an important role in boosting GDP and maintaining economic stability in a country, especially in G20 member countries. Economic balance can be achieved when aggregate expenditure equals national income. Therefore, this study was conducted to examine the impact of government spending, open trade, and government debt on economic contribution in G20 countries. Economic contribution is the ratio of the real GDP of each G20 member country to the average real GDP of all G20 member countries. The research method used is quantitative analysis with Panel-Fix Effect Data through Keynes' theory as the grand theory. The results show that government spending plays a constructive role in increasing economic contribution, open trade has a negative impact on economic contribution, while government debt actually suppresses economic contribution. Thus, this study confirms that economic contribution in G20 countries is influenced by a combination of fiscal instruments, trade structure, and state financing policies in a multiplier effect. Balance in the policies issued by the government is the key to maintaining economic stability.
The Effect Of Service Quality And Price Perception On Repurchase Intention Through Customer Satisfaction Citilink Juanda Airport Surabaya Hilda Khuzaifah; Ignatia Martha Hendrati; Sugeng Purwanto
Jurnal Pamator : Jurnal Ilmiah Universitas Trunojoyo Vol 16, No 1: 2023
Publisher : Universitas Trunodjoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/pamator.v16i1.19061

Abstract

This study aims to test the effect of service quality and price perception on repurchase intentions through customer satisfaction as an intervening variable at Juanda Airport Surabaya for Citilink airlines. This research is descriptive and quantitative using SEM-PLS analysis tool with the help of Smart-PLS software. The data consisted of primary data collected from 102 respondents using accidental sampling to determine the sample. The results show that the quality of service has a tremendously positive influence on repurchase interest, but price perception has no significant effect. Customer satisfaction influences an intervening variable between service quality and repurchase intent but does not exist as an intervening variable between price perception and repurchase intent. Based on the historical background discussed and in comparison with the results of previous studies, this study attempts to examine the relationship among service quality, customer satisfaction, price perception, and repurchase interest of Citilink Airlines located at Juanda Airport in Surabaya. Taking case studies at this airport is because Juanda Airport is the main base of Citilink airlines and is one of the main airports with a relatively high passenger density in Indonesia.
Co-Authors Abisag Indah Itamary Achmad Room Fitrianto Adinda Putri Kusuma Dewi Aditia, Nuril Nadia Agustin, Dita Nia Alifvia Putri Arissyiah Andi Galih Waskito Anis Fitria Utami Anisa Fitria Utami Aprilianti, Hera Asmara, Kiky Aysah, *Irma Nur Ayu Larasati Budi Setyo Utomo Burhan Abel Taqi Cahyani, Syaharani Christian Thomas Soenarko Cindy Fatikha Sari Datau, Noufaldo Rahmatullah Denanta Mardian Nugraha Dewanti, Francisca Galuh Dianty, Septy Ayu Diny, Sakinah Mulia Dwi S., Yunita Eko Purwanto Ersalia Shifa Ramadhani Hadi Sumarsono Hanum Prawita Lestari Hendrartono, Danang Raihan Hery Pudjo Prastyono Hilda Khuzaifah Imam Mukhlis Indira Tunjung Putih Irma Eka Yuanasari Irma Sulistia Dewi ISTIYANI ISTIYANI Jalaluddin Iman Rahadianto Jeniper Indah Pandiangan Jesica Karindra Agustia Kamala Nailil Muna Kamila, Dhea Amelia Putri Khadijah Mahani Kiki Asmara Kiki Asmara Kiky Asmara Kirana, Erghana Kanza Laksono Trisnantoro Liestiawan, Irfandi Mei Retno Adiwaty Mochamad Muchson Mohammad Wahed Mohammad Wahed, Mohammad Muhadjir Anwar Muhammad Fauzan Nadia Afny Zuraida Nugraha, Dwiki Andreansyah Nugrahani, Ajeng Putri Nugroho, Moch Erik Nur Aisyah, Naflah Azmi Nur Latifah Nuruni Ika Kusuma Wardhani Nuruni Ika Kusuma Wardhani Nuruni Ika KW Odelia, Evi Maya Özlem Sökmen Gürçam Prasetya, Shinta Rifianing Putra Perdana Putra Perdana Razaktania Widodo, Ashilah Rifqi Darmawan Romawati, Amelya Sandy Ryan Firmansyah Saragih, Aulia Anggi Lestari Sebastiana Viphindrartin Shinta Khusnatul Fadilah Sishadiyati Sri Muljaningsih Sugeng Hadi Utomo Sugeng Purwanto Sugeng Purwanto Sukesi . Sulistyo, Desy Ari Tito Widiandaru Wedari, Maharani Sri Wirya Wardaya Wirya Wardaya Wirya Wardaya Wiwik Handayani Wiwik Handayani Zuraida, Nadia Afny