Model estimasi permintaan air minum kemasan oleh masyarakat dan mahasiswa di sekitar kampus

Rineliana Rineliana, Sri Endang Kornita

Sari


Artikel ini mencoba membuktikan fungsi permintaan dan elastisitas atas permintaan air dalam kemasan. Sampel sebanyak 30 responden diambil dari populasi yang ada di sekitar Kampus Universitas Riau. Wawancara dilakukan dengan responden untuk mengetahui persepsi mereka tentang kualitas dan harga air kemasan. Untuk memecahkan persamaan, menggunakan fungsi permintaan Marshallian dengan variabel penjelas yang meliputi harga air kemasan, harga barang lain, dan pendapatan responden. Untuk mengestimasi elastisitas harga, harga silang, dan pendapatan dari permintaan air menggunakan model regresi liner berganda. Harga barang itu sendiri, harga barang lain dan pendapatan memberikan pengaruh yang signifikan terhadap jumlah air kemasan yang diminta konsumen. Walaupun koefisien regresi tertinggi ada di variabel pendapatan, tapi dari perhitungan menunjukkan bahwa jumlah air kemasan yang diminta konsumen paling peka akibat perubahan harga produk itu sendiri, dimana nilai elastisitasnya paling tinggi.

This article tries to prove the function of demand and elasticity of demand for bottled water. A sample of 30 respondents was taken from the population around the Riau University Campus. Interviews were conducted with respondents to determine their perceptions of bottled water's quality and price. To solve the equation, we use the Marshallian demand function with explanatory variables, including bottled water prices, other goods, and the respondent's income. Using a multiple linear regression model, estimate price elasticity, cross-price, and income from water demand. The prices of the goods themselves, other goods, and income significantly influence the quantity of bottled water consumers demand. Although the highest regression coefficient is in the income variable, the calculation shows that the amount of bottled water demanded by consumers is most sensitive to changes in the product's price, where the elasticity value is the highest.

Kata Kunci


Elasticity; bottled water; Marshallian demand function

Referensi


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DOI: http://dx.doi.org/10.31258/sorot.18.1.1-17

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