Determinants of potato consumption as a carbohydrate source in East Java, Indonesia: A household-level analysis

¹ Department of Agribusiness, Universitas Islam Malang. Malang 65144, Indonesia
² College of Agronomy, Department of Agronomy, University of Sargodha, 40162, Pakistan
³ Department of Agribusiness, Universitas Islam Balitar, Blitar 66137, Indonesia
⁴ Study Program of Agribusiness, University of Muhammadiyah Jember, Jember 68193 Indonesia
⁵ Collage of Agriculture and Environmental Sciences, University of South Africa, 0003, South Africa.
⁶ Hungarian Research Institute of Organic Agriculture, Budapest, 1038, Hungary
⁷ Centre for Food Security Studies, community service institutions, Universitas Islam Malang, Malang 65144, Indonesia

¹ Corresponding author: This email address is being protected from spambots. You need JavaScript enabled to view it.

Abstract

Diversification of food sources is crucial for enhancing national food security. Potatoes are an accessible source of carbohydrates for households; nevertheless, their prices frequently exhibit significant volatility. This study aims to examine the determinants affecting the demand for potatoes. The study was performed in East Java Province, utilizing secondary data from the Central Bureau of Statistics, namely the National Socioeconomic Survey (SUSENAS) for 2023. The study's sample size included 32,454 households. The data analysis employs a Multiple Linear Regression. The research findings indicate that the primary carbohydrate source for households is rice (78.5%), followed by wheat flour (36.7%) and subsequently potatoes (25.8%). The prices of potatoes, rice, shelled corn, cassava, and sweet potatoes affect the demand for potatoes. Simultaneously, the prices of sticky rice, wheat flour, sago, taro, and gaplek do not affect the demand for potatoes. Household income exerts a positive and significant influence on potato demand. The quantity of household members does not influence the demand for potatoes. Substitutes for potatoes include rice, cassava, and sweet potato, whilst corn is a complement to potatoes. This study's findings indicate that households in East Java utilize potatoes as a carbohydrate source alongside rice, particularly as household income rises.