Judul: Perdagangan Karet Spesifikasi Teknis antara Thailand dan China
Abstrak: Thailand and China play important roles in the trade of natural rubber because both countries are respectively the biggest exporter and importer of natural rubber in the world. However, there are many problems such as supply shortage of natural rubber to meet the demand for natural rubber and unstable prices. Therefore, it is necessary to examine how the behaviors of both countries affect the supply, demand and price of natural rubber in international trade in particular technical specified rubber (TSR) where this type of rubber have the greatest amount traded between the two countries. This study has two main objectives that include the following: (1) to analyze the factors that influence the export supply, import demand and price for technical specified rubber in Thailand and China, and (2) to analyze the impact of internal factors and external factors alteration to the export supply, import demand and price for technical specified rubber in Thailand and China. This study used econometric analysis and implemented two stage least squares (2SLS) method and simultaneous equation model and used time series secondary data from 1990 to 2010. The results showed that: (1) Thailand’s supply for TSR exports to China was influenced by amount of TSR Thailand export to China in previous year and amount of TSR Thailand production, while Thailand’s supply for TSR exports to non-China was influenced by amount of TSR Thailand production and amount of TSR Thailand exports to China, (2) China’s demand for TSR imports of Thailand influenced by China’s participation in WTO, amount of automotive production in China and China’s real price import of TSR, while China’s demand for TSR imports of non-Thailand influenced by amount of China’s TSR imports from non-Thailand in previous year, amount of automotive production in China and import tariff in China, and (3) world TSR real prices was influenced by world TSR real price in previous year, amount of exports supply of the world in previous year and amount of imports demand of the world, while real price TSR exports of Thailand was influenced by world TSR real price, amount total of TSR Thailand exports and USA fuel real price, while real price TSR import of China was influenced by world TSR real price ratio and real price TSR import of China in previous year. Historical simulation and forecasting simulation results show that increased production quantities of TSR policy in Thailand and abolition of import tax of TSR policy in China performed within TSR rubber trade between Thailand and China because it enabled to increase foreign exchange for Thailand's technical specified rubber exports.
Keyword: shortage, unstable prices, 2SLS, technical specified rubber, WTO

Judul: Comparative Competitiveness of Indonesia and Thailand Natural Rubber Export in the Destination Countries and its Influencing Factors.
Abstrak: Indonesia memiliki areal karet alam terluas di dunia, namun perannya sebagai eksportir karet alam masih di bawah Thailand. Selama 2013-2022, Indonesia dan Thailand memiliki kesamaan beberapa negara tujuan sehingga menimbulkan persaingan ekspor antara kedua negara tersebut. Penelitian ini mengidentifikasi dan membandingkan daya saing ekspor karet alam Indonesia dan Thailand dengan menggunakan metode RCA, EPD, dan X-Model. Identifikasi faktor-faktor yang memengaruhi volume ekspor karet alam Indonesia digunakan regresi data panel. Secara keseluruhan, hasil perhitungan nilai RCA Indonesia 36,55 dan Thailand 29,59 menunjukkan Indonesia memiliki daya saing yang lebih unggul diantaranya di AS, Brazil, India, Jepang, dan Turki, sedangkan Thailand hanya unggul di China dan Korea Selatan. Analisis X-Model menunjukkan karet alam Indonesia memiliki pasar potensial di AS, China, India, Jepang, dan Turki. Sementara Brazil dan Korea Selatan merupakan pasar kurang potensial. Di sisi lain, Thailand memiliki pasar optimis di AS dan Turki, pasar potensial di China, India, Jepang, dan Korea Selatan, pasar kurang potensial di Brazil. Hasil estimasi regresi data panel menunjukkan variabel PDB riil importir, nilai RCA Indonesia, harga karet alam Thailand, dan dummy Covid-19 berpengaruh signifikan terhadap volume ekspor karet alam Indonesia.
Keyword: natural rubber, RCA, EPD

Judul: Konsumsi Pangan dan Status Gizi Ibu Hamil di Kecamatan Danurejan, Kodya Yogyakarta, Daerah Istimewa Yogyakarta
Abstrak: Hasil penelitian menunjukkan bahwa rata-rata konsumsi energi per orang per hari adalah 1 525 Kalori, konsumsi protein 45,l g, konsumsi zat besi 12,8 mg dan konsumsi vitamin A 2 264 SI. Rata-rata kecukupan energi per orang per hari adalah 2 213 Kalori, kecukupan protein 75,6 g, kecukupan zat besi 29,O mg dan kecukupan vitamin A 4 500 SI.
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