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All Journal Jurnal Pensil : Pendidikan Teknik Sipil Societas : Jurnal Ilmu Administrasi dan Sosial JAS (Jurnal Agri Sains) Randwick International of Social Science Journal International Journal of Social Science, Educational, Economics, Agriculture Research, and Technology (IJSET) Indonesian Community Journal Jurnal Pengabdian Masyarakat dan Riset Pendidikan Journal of Innovative and Creativity ADM : Jurnal Abdi Dosen dan Mahasiswa
Yanuar Fitri
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Agriculture, Biological Sciences & Forestry Humanities Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Environmental Science Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics Public Health Social Sciences Other

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HORIZONTAL AND VERTICAL INTEGRATION OF RICE MARKETS IN JAMBI PROVINCE Camilla Fani; Zulkifli Alamsyah; Yanuar Fitri
International Journal of Social Science, Educational, Economics, Agriculture Research and Technology (IJSET) Vol. 5 No. 9 (2026): AUGUST
Publisher : RADJA PUBLIKA

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Abstract

Variations in rice-price movements across regions and marketing levels indicate that price formation and market-information transmission are not uniform. This study describes rice-price developments at the producer level in Jambi, West Sumatra, and South Sumatra and at the wholesale and consumer levels in Jambi, and analyses horizontal and vertical market integration. Monthly prices from January 2021 to April 2026 were examined using descriptive and linear-trend analysis, vector autoregression, and error correction models within a cointegration framework. All series trended upward, although their rates of change and fluctuations differed. Producer markets did not share a long-run equilibrium, but one-way short-run linkages ran from West Sumatra to Jambi and from Jambi to South Sumatra. Vertically, the South Sumatra chain exhibited the broadest set of long-run relationships, whereas the West Sumatra and local Jambi chains showed no long-run linkage between producer and downstream prices. The wholesale-consumer segment displayed the most consistent adjustment mechanism. Rice-market integration in Jambi therefore varies across regions, marketing levels, and time horizons and does not necessarily imply proportional price transmission. The study’s originality lies in jointly analysing price trends and horizontal and vertical integration while retaining the geographical identity of each producer-price series.
Co-Authors Ade Nurdin Adlaida Malik Ardhiyan Saputra Armen Mara Camilla Fani Dewi Sri Nurchaini Dewi Sri Nurchaini Dompak MT Napitupulu Edison Elwamendri Emy Kernalis Ernawati Ernawati Fuad Muchlis Haura Atthahara Haura Atthahara Liona Efrina S M Nuklirullah Nur Fitri Ani Riri Oktari Ulma Saidin Nainggolan, Saidin Sherly Monica Ardelia Sophia Sugiarti, Cucu Tesa Septiani Vijai Hutasoit Yulismi Yulismi Yulismi Yusma Damayanti Zakky Fathoni Zulkifli Alamsyah