Judul: The Price Transmission in Rice Market Chain in Indonesia
Abstrak: The aim of this study is to assess the rice market chain performance, namely price volatility and price transmission among producer, rice miller, wholesaler, and retailer, with respect to the enforcement of rice price stabilization policy in Indonesia. We use the standard deviation of return for price volatility and the Cointegration test and the Error Correction Model for price transmission analysis. The results of this study show that the magnitudes of price volatilities along market chain decrease from producer to retailer. Producer in the upstream faces the highest price volatility at 24,9%, and then ricemiller and wholesaler face the lower price volatility than producer but still high at 18,3% and 18,1%, respectively. Whereas retailer in the downstream faces the stable price at 8,7%. The price transmission analysis concludes that the rice market chain in Indonesia is segmented. The rice price is not transmitted completely from producer to consumer, and vice versa. There are only two markets which are integrated, namely price relationships between producer and ricemiller and between wholesaler and retailer. Meanwhile the price relationships between producer and wholesaler, producer and retailer, ricemiller and wholesaler, and ricemiller and retailer are not integrated.
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Judul: The Price Transmission in Rice Market Chain in Indonesia
Abstrak: The aim of this study is to assess the rice market chain performance, namely price volatility and price transmission among producer, rice miller, wholesaler, and retailer, with respect to the enforcement of rice price stabilization policy in Indonesia. We use the standard deviation of return for price volatility and the Cointegration test and the Error Correction Model for price transmission analysis. The results of this study show that the magnitudes of price volatilities along market chain decrease from producer to retailer. Producer in the upstream faces the highest price volatility at 24,9%, and then ricemiller and wholesaler face the lower price volatility than producer but still high at 18,3% and 18,1%, respectively. Whereas retailer in the downstream faces the stable price at 8,7%. The price transmission analysis concludes that the rice market chain in Indonesia is segmented. The rice price is not transmitted completely from producer to consumer, and vice versa. There are only two markets which are integrated, namely price relationships between producer and ricemiller and between wholesaler and retailer. Meanwhile the price relationships between producer and wholesaler, producer and retailer, ricemiller and wholesaler, and ricemiller and retailer are not integrated.
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Judul: Closed Knight’s Tour pada Papan Catur Berbentuk Persegi Panjang dengan Ukuran Maksimal 8 × 8
Abstrak: Closed Knight’s Tour merupakan langkah kuda yang mengunjungi setiap kotak pada papan catur tepat satu kali dengan langkah kuda berawal dan berakhir pada kotak yang sama. Graf yang terbentuk dari closed knight’s tour dinotasikan sebagai graf G(m,n), dengan m adalah banyaknya baris dan n adalah banyaknya kolom. Graf tersebut memuat Hamiltonian cycle. Sebuah graf terhubung G adalah graf bipartite jika dan hanya jika graf tersebut tidak memiliki cycle dengan panjang ganjil. Papan catur yang memenuhi syarat cukup untuk memiliki closed knight’s tour adalah papan catur berukuran 5 × 6, 5 × 8, 6 × 6, 6 × 7, 6 × 8, 7 × 8, dan 8 × 8.
Keyword: bipartite, closed knight’s tour, hamiltonian cycle, knight’s tour, teori graf