Judul: The influence of international soybean price shock on domestic soybean price
Abstrak: Foods are primary human basic need. Lack of food supply could implicate on social and politic instability. The fluctuation of foods prices influence risk and uncertainty on decision making process. Soybean is primary commodity in Indonesia after rice and corn. The growth of soybean production is lower than its demand so it leads to increasing number of import. High number of imported soybean may indicate a correlation between international and domestic soybean price. The objectives of this study are (1) to analyze the short term correlation between international soybean price and domestic soybean price, (2) to analyze the long term correlation between international soybean price and domestic soybean price, and (3) to determine the impact of international soybean price shock on domestic soybean price. This study used data from Ministry of Trade, Bank of Indonesia (BI), United States Departement of Agriculture (USDA) and Zhengzhou Commodity Exchange (CZCE). International soybean price represented by USA soybean price (world largest exporter) and China soybean price (world largest importer). Those data above were secondary data in monthly time series form collected from 2009 until 2012. The method use in this study is Vector Correction Error Model (IRF, FEVD and pass trough). This study use Eviews 6.0 software. Study show that in the short term, international soybean price (USA and China) influence’s to domestic soybean price were not significant. In long term the USA soybean price has positive significant influence to domestic soybean prices. In contrast, the real exchange rate has negative significant influence. Pass trough analysis conclude that the impact of international soybean price (USA soybean price) shock on domestic soybean price was 1.6 percent.
Keyword: VECM, international soybean price, domestic soybean price

Judul: Dampak guncangan harga minyak mentah dunia terhadap harga beras domestik (suatu analisis kointegrasi)
Abstrak: Rice is a substantial strategic and food comodity in Indonesia and also in some countries in the world, particularly in Asia. Therefore, the stability of rice price and the availability should be maintained, especially rice is also known as unstable commodity. Starting in 1994, Indonesia became a net importer of rice commodity, then, Indonesia‟s rice market is allegedly integrated with the world‟s rice market. Consequently, any changes or shock in the world‟s rice market, which is one of its shocks caused by world oil price shock, will affect the domestic rice market. The objectives of this study are: (1) to analyze factors that influence the domestic rice price, (2) to analyze the effect of changes on the world oil price shocks to the domestic rice price. The applicable method for this study is vector error correction model (VECM) with analysis tools are IRF, FEVD, and pass-through. The estimation results indicate that there is a cointegration in the models studied. In the short-term, factors (variables) that affect the domestic rice price are the price of imported rice, domestic rice price, and the price of crude oil. Besides, in the long run, factors (variables) that affect the domestic rice price are the price of imported rice, world rice price, and production rice. The variables that largely influence the domestic rice price are world rice price and price of imported rice. On the other hand, a variable that slightly affect is the total factor productivity (TFP).
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Judul: Studi Taksonomi Katak Subgenus Papurana (Lesson, 1831) dari Halmahera (Anura, Ranidae, Hylarana), Studi Taksonomi Katak Subgenus Papurana (Lesson, 1831) dari Halmahera (Anura, Ranidae, Hylarana
Abstrak: I reevaluated taxonomic of subgenus Papurana position from Halmahera based on morphological and molecular analyses. My results show that two separate species occur on the Halmahera Island, each nested within two distinct clades (hereafter papua clade and celebensis clade), one of which corresponds to H. moluccana (celebensis clade) and the other to an unidentified species (papua clade). By p-distance ranging from 6.9 to 11.5% on the 16S rRNA gene, the unidentified species (Hylarana sp.) is genetically different from all congeners of the papua clade. The Hylarana sp. can be distinguished from all congeners by following combination of charactes: vomer teeth in two oblique rows with narrow inter-vomer distance; snout rounded dorsally; dorsum with few scattered cone-shaped tubercles that are black with white tips; distinct skin folds (ridges) on the dorsal side of the thigh coinciding with dark brown cross bars; a marbled pattern on the ventral side of the thigh and yellowish groin. I also present new data for H. daemeli, H. volkerjane, and H. arfaki from the western region of Papua. Furthermore, I found that H. celebensis has numerous mtDNA lineages, indicating cryptic diversity within the celebensis clade. The discovery of two separate species on Halmahera necessitates more research into the biogeographic history of Hylarana in Northern Moluccas.
Keyword: frog, Halmahera, Hylarana, morphology, Papurana, phylogenetic