Judul: Dampak Kebijakan Pemerintah Terhadap Keuntungan dan Daya Saing Rumput Laut di Kepulauan Tanakeke Provinsi Sulawesi Selatan
Abstrak: Seaweed is one of the leading commodities in the Fisheries Revitalization Program in South Sulawesi. Production and export growth of seaweed over the last five years experienced a significant increase but will not be offset by the value of export receipts caused by the quality of seaweed produced in Tanakeke islands so low that the price of seaweed in the international market is low. Therefore, This study aims to analyze: (1) the level of financial and economic benefits, (2) the competitiveness of commodities seaweed the through competitive and comparative advantage, (3) the impact of government’s input-output policy on the competitiveness and benefits of commodities seaweed. Policy Analysis Matrix (PAM) was employed in this study in order to calculate the private and social prices of revenue and cost of the seaweed in which the social price was calculate from the shadow price of output is based on FOB prices in the port of export (Makassar) and private prices from seaweed adjusted real actual price received by farmers Tanakeke Islands. The results showed that: (1) the seaweed in Tanakeke islands was profitable (both privately and socially profitable), (2) it had competitive advantage (PCR < 1) and comparative advantage (DRC < 1), (3) the impact of government policy on output indicates negative result means that government intervention has not been effective so that the prices received by farmers is lower than international prices.
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Judul: Sistem Pemasaran Rumput di Kepulauan Tanakeke, Kabupaten Takalar, Provinsi Sulawesi Selatan: Struktur Perilaku, dan Keragaan Pasar
Abstrak: South Sulawesi is one of the central of seaweed production in Indonesia. This study focuses in Tanakeke Islands, Takalar Regency that produced most of the seaweed in South Sulawesi. The objectives of this study were (i) to identify market structure of seaweed in Tanakeke Islands, (ii) to describe market conduct of seaweed in Tanakeke Islands, (iii) to determine market performance of seaweed in Tanakeke Islands. According to S-C-P approach (Structure Conduct Performance). The research indicated that market structure of seaweed was oligopsonistic, and the majority single marketing institution is determining the seaweed price. It also showed there were four marketing channel, (1) farmersmiddlemen in village-middlemen in subdistricts-wholesaler-exportir level, (2) farmers-middlemen in village-wholesaler-exportir level, (3) farmers-middlemen in village-wholesaler-exportir level, (4) farmers-middlemen in village-exportir level, where the first marketing channel had the highest total of the marketing margin. This implies the farmer share has the lower value. The research revealed weak market integration between farmer and middlemen. Conversely, market integration at farmer level and middlemen was highly, especially in the long run.
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Judul: Cycle Hamilton pada Graf Lengkap, Graf Regular, dan Graf 2-Connected 4-Regular Berorder Kurang dari Sepuluh
Abstrak: Suatu graf disebut graf Hamilton apabila graf tersebut memuat cycle Hamilton, yaitu cycle yang melewati setiap vertex tepat satu kali. Menentukan keberadaan cycle Hamilton pada suatu graf dapat menggunakan syarat cukup yang berupa teorema-teorema yang telah diperkenalkan sejak tahun 1950-an. Beberapa syarat cukup yang dibahas dalam karya ilmiah ini adalah syarat cukup yang berhubungan dengan graf lengkap dan graf regular. Suatu graf lengkap berorder 𝑛������ ≥ 3 dan graf r-regular berorder 𝑛������ ≤ 2𝑟������ + 1 merupakan graf Hamilton, Karena kedua graf tersebut memuat cycle Hamilton. Selanjutnya, syarat cukup tersebut digunakan untuk menentukan keberadaan cycle Hamilton pada graf 2-connected 4- regular berorder kurang dari 10.
Keyword: graf Hamilton, graf regular, graf lengkap, graf 2-connected 4-regular