Muhammad Imam Ma’ruf, Zsuzsanna Bacsi, Zsolt Hollósy, Citra Ayni Kamaruddin, Sri Astuty
Coffee is a significant commodity in Indonesia, and the two most widely cultivated coffee species are Arabica (Coffea arabica) and Robusta (Coffea canephora). This study aims to compare the yield stability of Arabica and Robusta coffee in Indonesia, and the performance of regions from the viewpoint of yield stability. Using the Yield Stability Index, the study measures yield stability over 10-years (2011-2020) using data from the Directorate General of Estates, Ministry of Agriculture. The Yield Stability Index is based on the comparison of yield fluctuations to fluctuations produced by normally distributed yield series. Results show, that the two coffee species considerably differ in their stabilities, and the stability of yields across regions also shows large discrepancies. While Robusta yields were stable in all the 33 analyzed regions, though to a different extent, for Arabica, produced in 20 regions, only 4 could produce stable yields. The yield stability of Indonesian coffee is influenced by a complex interplay of environmental factors, agronomic, and socio-economic factors. Mitigating these yield stability challenges requires a multifaceted approach. © 2025, Editora UFLA. All rights reserved.
Doctoral School of Economic and Regional Sciences, Hungarian University of Agriculture and Life Sciences (MATE), Pest, Gödöllő, Hungary; Development Economics Study Program, Economic Sciences Department, Faculty of Economics, Universitas Negeri Makassar (UNM), South Sulawesi, Makassar, Indonesia; Department of Agricultural Economics and Policy, Institute of Agricultural and Food Economics, Hungarian University of Agriculture and Life Sciences (MATE), Zala, Keszthely, Hungary; Faculty of Social Sciences, Institute of Economics, Eötvös Loránd University (ELTE), Budapest, Hungary
