Varied Knowledge Journal
Vol. 4 No. 1 (2026): Varied Knowledge Journal, August 2026 - In Press

Analysis of Factors Affecting Farmers' Exchange Rate (NTP) in the Java Region

Gina Harlina (Development Economics Study Program, Universitas Airlangga, Indonesia)
Unggul Heriqbaldi (Development Economics Study Program, Universitas Airlangga, Indonesia)



Article Info

Publish Date
31 Jul 2026

Abstract

This study examines the determinants of the Farmers’ Terms of Trade (NTP) in Java, emphasizing the role of food inflation as reflected in the Consumer Price Index (CPI), the Gross Regional Domestic Product (GRDP) of the agricultural sector, and rice prices as a strategic commodity. The study employs quarterly data from 2017–2024 obtained from the Central Statistics Agency and other official sources. The Autoregressive Distributed Lag (ARDL) approach is applied to analyze both short-run and long-run relationships. The stationarity test results indicate that all variables are stationary at the first difference. The ARDL(1,1,1,1) estimation produces an R² of 0.9916, with a significant Error Correction Term (ECT) of -0.9527, confirming the presence of cointegration and a strong adjustment mechanism toward long-run equilibrium. Empirically, CPI, GRDP, and rice prices have a positive and significant impact on NTP in the long run, while their short-run effects are not statistically significant. Diagnostic tests confirm that the model is free from classical assumption problems, stable, and consistent. Causality tests reveal the dominant role of rice prices in influencing other variables. Robustness checks using the VECM approach further validate these findings, offering important policy implications.

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Journal Info

Abbrev

vkj

Publisher

Subject

Religion Arts Humanities Computer Science & IT Economics, Econometrics & Finance Education Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Medicine & Pharmacology Social Sciences

Description

Varied Knowledge Journal (VKJ) is a multidisciplinary journal publish 4 issues a year with online version of E-ISSN 3026-5371 and can be accessed openly. This journal is a peer reviewed, open access, scientific and scholarly journal which publishes research papers, review papers, case reports, case ...