Judul: Dampak Kebijakan Ecolabel Uni Eropa terhadap Ekspor Furnitur Indonesia di Pasar Uni Eropa
Abstrak: The furniture product is one of the main non-petroleum export commodities along with palm oil, garments, and rubber. As one of the biggest market share of Indonesian wood furniture exports after United States, European Union is considered capable to affect Indonesia’s wooden furniture export. This research aim is to analize the effect of European Union’s Ecolabel policy towards Indonesia’s wooden furniture export in European Union market. This research use Revealed Comparative Advantage, Export Products Dynamics and panel data methods. Results of the research show that the condition of Indonesia’s wooden furniture competitiveness tends to decrease in the competitive position called lost opportunities. Significantly, those factors that affected the value of Indonesia’s wooden furniture export are real GDP of destined country, the value of Rupiah’s real exchange rate, Indonesia’s Consumer Price Index, and the Ecolabel dummy. The economic distance doesn’t significantly affect the furniture export. With the positive effects of Ecolabel policy towards Indonesia’s wooden furniture export
Keyword: RCA, panel data, furniture, EPD, Ecolabel

Judul: Analysis of Competitiveness as well as the Effect of EUTR and FLEGT Licenses on Indonesian Stripwood Exports in the European Union Market
Abstrak: Produk kehutanan dalam bentuk stripwood (HS 4409) merupakan komoditas unggulan ekspor Indonesia dengan realisasi ekspor terbesar pertama di dunia. Namun, industri kehutanan sangat sensitif terhadap laju deforestasi sehingga menjadi urgensi global dalam regulasi kehutanan. Sebagai salah satu regulasi kehutanan dunia, Forest Law Enforcement, Governance, and Trade (FLEGT) merupakan regulasi yang diterbitkan oleh Uni Eropa pada tahun 2003. Pada prospek FLEGT, EU Timber Regulation (EUTR) dan lisensi FLEGT menjadi urgensi bagi ekspor kayu Indonesia dalam menjangkau pasar Uni Eropa. Penelitian ini bertujuan untuk menganalisis daya saing stripwood di pasar Uni Eropa berdasarkan metode RCA, EPD, dan X-Model, serta menganalisis pengaruh EUTR, lisensi FLEGT, dan faktor lainnya terhadap ekspor stripwood di pasar Uni Eropa berdasarkan metode regresi data panel. Pada analisis keunggulan komparatif, ekspor stripwood berdaya saing tinggi secara keseluruhan. Pada analisis keunggulan kompetitif, ekspor stripwood berada pada posisi lost opportunity dan retreat. Pada analisis X-Model, stripwood Indonesia berada pada pengembangan pasar potensial dan kurang potensial. Hasil analisis menunjukkan bahwa variabel RCA, inflasi, GDP per kapita, dan nilai tukar riil berpengaruh positif secara signifikan, sedangkan variabel harga, dummy EUTR, dan dummy lisensi FLEGT berpengaruh negatif secara signifikan terhadap ekspor stripwood., Forestry products in the form of stripwood (HS 4409) are Indonesia's leading export commodities with the world's largest export realization. However, the forestry industry is very sensitive to the rate of deforestation, making it a global urgency in forestry regulations. As one of the world's forestry regulations, Forest Law Enforcement, Governance, and Trade (FLEGT) is a regulation issued by the European Union in 2003. In terms of FLEGT prospects, the EU Timber Regulation (EUTR) and FLEGT licenses are an urgency for Indonesian timber exports to reach European Union market. This research aims to analyze the competitiveness of stripwood in the European Union market based on the RCA, EPD, and X-Model methods, as well as analyzing the influence of EUTR, FLEGT licensing, and other factors on stripwood exports. in the European Union market based on panel data regression methods. In the comparative advantage analysis, stripwood exports are highly competitive overall. In the competitive advantage analysis, stripwood exports are in a lost opportunity and retreat position. In the X-Model analysis, Indonesian stripwood is in potential and less potential market development. The results of the analysis show that the variables RCA, inflation, GDP per capita, and the real exchange rate have a significant positive effect, as for the price variable, the EUTR dummy and the FLEGT license dummy have a significant negative effect on stripwood exports.
Keyword: daya saing, regresi data panel, EUTR, Lisensi FLEGT, Stripwood

Judul: Hamiltonian formulation for linear waves motion in two layers fluid
Abstrak: The surface wave could be considered as a wave that separates two fluids, namely water and air. Based on this assumption, it is introduced the interfacial wave, a wave between two layers of fluid with different density. The formulation of interfacial waves motion begins with deriving the base equation of irrotational ideal fluid. Furthermore, according to irrotational fluid assumption, the base equation can be stated in velocity potential. In this derivation, the fluids domain is assumed to be restricted by rigid lid boundary conditions, both at the upper and lower limit. Therefore, the interfacial waves motion can be explained in a hamiltonian formulation. In the hamiltonian formulation, total energy is defined as the sum of kinetic and potential energy. The hamiltonian system is obtained from reduction of kinetic energy by using the Dirichlet Neumann Operator. The resulted kinetic energy equation is nonlinear. Therefore, this form is linearized by first part of the Taylor expansion. This linearization gives a dispersion relation of linear wave. Based on this dispersion relation, the phase speed of the linear wave depends on the density ratio of the two layers fluid.
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