Judul: Analisis Faktor-faktor yang Memengaruhi Trade Balance Indonesia dengan ASEAN dan Tiga Mitra Dagang Utama
Abstrak: Trade balance is a variable which forms the national income. During 2008 crisis, trade balance contributes the highestvalue, which is 40 percent. But during periods 2003 until 2012, Indonesia’s trade balance with ASEAN and three main trade partners remains a decreasing trend line. This study aims to analyze the development of Indonesia’s trade balance and analyze factors influencing Indonesia’s trade balance with ASEAN and three main trade partners for period 2003 until 2012, the analysis method used in this study is panel data method, with an annual time series data from 2003 until 2012 and cross section data (Indonesia, Singapore, Malaysia, Philiphina, Thailand, China, Jepang, dan Amerika). Variables used are GDP per capita of Indonesia, GDP per capita of trade partners, rill exchange rate, Indonesia’s money supply, and crisis as a dummy variable. The estimation shows that all variables significantly influence Indonesia’s trade balance and have an impact which is consistent with the studies hypothesis.
Keyword: exchange rate., panel data, trade balance

Judul: Analisis Faktor-Faktor yang Memengaruhi Ekspor dan Perdagangan Potensial: Studi Kasus ASEAN+3
Abstrak: Perkembangan globalisasi ekonomi dan keterbukaan ekonomi saat ini, menjadi salah satu alasan untuk melakukan pembentukan kerja sama ekonomi dan perdagangan bebas, agar suatu kawasan dapat bersaing dengan kawasan-kawasan lainnya. Melihat hal tersebut, penelitian ini bertujuan untuk menganalisis faktorfaktor yang memengaruhi ekspor dan perdagangan potensial: studi kasus ASEAN+3 dengan menggunakan data panel. Data cross section memfokuskan pada 9 negara bagian ASEAN+3, sedangkan data time series yang digunakan periode tahunan 2007 sampai 2016. Penelitian ini menggunakan analisis ekonometrika data panel dengan pendekatan gravity model. Hasil penelitian menunjukkan bahwa semua variabel independen yang digunakan yaitu GDP riil negara pengekspor, GDP riil negara tujuan ekspor, Populasi negara tujuan ekspor, Nilai tukar nominal negara pengekspor dan Jarak ekonomi antar negara berpengaruh signifikan terhadap Nilai total ekspor antara ASEAN dengan negara mitra. Hasil analisis rasio perdagangan potensial menunjukkan bahwa secara keseluruhan pada ekspor pada ASEAN dengan negara mitra memiliki tren yang semakin meningkat yang menandakan bahwa kesenjangan pada ekspor tersebut semakin besar.
Keyword: ekspor ASEAN+3, gravity model, perdagangan potensial

Judul: Hybrid solar cells of ZnO nanoparticles/chlorophyll was modified metal ions (Zn2+ and Cu2+ )
Abstrak: Zinc Oxide (ZnO) is a n-type semiconductor with a wide the energy band (Band Gap) is 3.37 eV at room temperature and 3.34 eV at low temperature with a large exiton binding energy is 60 meV. ZnO has been synthesized by hydrothermal method, resulting in a decrease in particle size over the duration of the hydrothermal changes. Crystallographic structure of ZnO were characterized using XRD, has shown the characteristic pattern of a hexagonal wurtzite structure, the crystallite size increases to changes in particle size. Changes in particle size has also led to a change in the absorption peak of ZnO as has been demonstrated posted under test using the optical properties of UV-Vis spectrophotometer. Changes of this uptake has also led to changes in the energy band gap, which increases its band gap energy of the particle size. In electronic applications, especially in solar cells. Chlorophyll is considered less effective, because of their very nature are easily degraded as a result of several reactions which are acid, lighting and temperature. The results of the stability test using a halogen lamp 34 W/m2 for 5 hours, that the substitution of chlorophyll with metal ions Zn2+ and Cu2+ has been shown to form more stable than natural chlorophyll. The characterization of the optical properties, the combination of ZnO / chlorophyll in the form of hybrid films has led to a shift in the absorption region of ZnO becomes more widely from the UV to Visible. ZnO/chlorophyll has absorption range of 350-515 nm, ZnO / Zn-feofitin 332-401 nm and 332-632 nm for Cu-feofitin. The combination of ZnO/chlorophyll and CuSCN as a solid electrolite in hybrid solar cell, a modified chlorophyll with metal ions Zn2+ and Cu2+ has been shown to form a more stable I-V curve. It is characterized by its fill factor value greater than natural chlorophyll. Nevertheless, solar cells with natural chlorophyll has been able to produce higher efficiency values of chlorophyll were substituted.
Keyword: Hydrothermal, ZnO/Chlorophyll modified, Hybrid Solar Cell