Judul: Analysis of Indonesian Main Commodities Export Performance to ASEAN + 4 in 2010-2015
Abstrak: Indonesia sudahsejak lama melakukan perdagangan dengan berbagai Negara namun masih terbatas pada komoditas tertentu dan Negara mitra utama seperti Cina, AmerikaSerikat, Jepang, India dan Singapura. Negara yang potensial untuk dijadikan mitra diantaranya adalah negara ASEAN+4. Komoditas unggulan ekspor Indonesia ke ASEAN+4 yaitu fixed vegetable fats and oils (SITC 422), miscellaneous chemical products, n.e.s. (SITC 598), electrical apparatus (SITC 772) serta paper and paper board (SITC 641). Hasil analisis RCA menunujukkan komoditi SITC 422 dan 641 memiliki daya saing. Analisis ISP menunujukkan Indonesia sebagai eksportir komodti SITC 422 dan 641. Posisi pasar berdasarkan matriks EPD berbeda setiap komoditi tapi secra umum berada pada posisi falling star. Penelitian ini menggunakan pendekatan model permintaan ekspor untuk menganalisis faktor-faktor yang memengaruhi ekspor komoditas unggulan. Hasil analisis menunjukkan bahwa GDP per kapita riil negara tujuan, jarak ekonomi, harga ekspor riil, nilai tukar riil dan nilai RCA berpengaruh terhadap volume ekspor komoditas.
Keyword: Bogor Agricultural University, Institut Pertanian Bogor, IPB, ASEAN+4, main commodity, export deman model, RCA, ISP, EPD, Blackcampaign, Trade Remedies, Cross Section, Time Series

Judul: Analysis of the Efficiency and Determinants of Indonesia's Ten Largest Agricultural Commodities Exports to ASEAN+3 Countries
Abstrak: Ekspor Indonesia ke ASEAN+3 memiliki porsi yang sangat besar. Sektor pertanian menjadi salah satu sektor penting sebagai penyumbang surplus terhadap neraca perdagangan bahkan menjadi sektor yang berhasil bertahan ditengah pandemi Covid-19. Penelitian ini bertujuan untuk menganalisis determinan ekspor sepuluh komoditas pertanian terbesar Indonesia ke negara mitra dagangnya serta nilai efisiensi ekspornya. Metode yang digunakan adalah stochastic frontier gravity model dengan data panel berupa nilai ekspor sepuluh komoditas pertanian terbesar Indonesia ke 12 negara di kawasan ASEAN+3 periode 2000 – 2021. Hasil penelitian menunjukkan bahwa variabel GDP riil Indonesia dan GDP riil negara mitra dagang, trade openness dan nilai tukar riil negara mitra dagang berpengaruh positif terhadap nilai ekspor. Sedangkan, variabel jarak ekonomi berpengaruh negatif terhadap nilai ekspor. Rata-rata nilai efisiensi ekspor sepuluh komoditas pertanian terbesar Indonesia ke negara di ASEAN+3 yakni sebesar 0,37., Indonesia's exports to ASEAN+3 have a considerable portion. The agricultural sector has become one of the essential sectors as a surplus contributor to the trade balance. It has even become a sector that has managed to survive amid the Covid-19 pandemic. This study aims to analyze the determinants of exports of Indonesia's ten largest agricultural commodities to its trading partner countries and the value of their export efficiency. The method used is a stochastic frontier gravity model with panel data in the form of the export value of Indonesia's ten largest agricultural commodities to 12 countries in the ASEAN+3 region for the period of 2000 – 2021. The result showed that the average export efficiency value of Indonesia’s ten largest agricultural commodities to countries in ASEAN+3 is 0,37. Furthermore, the results showed that the variables of Indonesia's real GDP and the real GDP of trading partner countries, trade openness, and the real exchange rate of trading partner countries have positively affected on the export values. Meanwhile, the economic distance variable has a negative impact on export values.
Keyword: ASEAN+3, Efficiency Export, Stochastic Frontier Gravity Model, Ten Largest Agricultural Commodities

Judul: Membran Polistirena Terfluorinasi untuk Aplikasi pada Microbial Fuel Cell
Abstrak: Microbial fuel cell (MFC) is a fuel cell that utilizes microbial activity as a source of its energy. The microbe used was from cow’s rumen liquid. The higher numbers of microbe, the higher the microbial activity . The electrolyte used in the MFC system was a fluorinated polystyrene membrane (PSf). Synthesis of PSf was done by using triethylamine trihydrofluoride with various composition, namely 5, 10, and 15%. Based on Fourier transform infrared spectroscopy (FTIR) result, fluorine atoms has been substituted into the aromatic ring of the polystyrene. The results of scanning electron microscope (SEM) states that the PSf membrane is a nonporous membrane so that is good to be used as an electrolyte in fuel cell. Proton conductivity test shows that membrane of 5% PSf has the highest proton conductivity. The PSf membrane can be applied in MFC system well. It known according to the value of potential difference generated by PSf 5, 10, and 15%, which are 8, 12, and 15 mV, respectively.
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