Judul: Dampak Keterbukaan Perdagangan terhadap Kinerja Sektor Pertanian di Kawasan ASEAN
Abstrak: Liberalisasi dan globalisasi yang semakin meningkat saat ini menuntut adanya keterbukaan perdagangan. Salah satu tanda keterbukaan perdagangan adalah diantaranya berupa penghapusan dukungan domestik, subsidi ekspor dan pembukaan akses pasar yang seluas-luasnya. Secara teoritis keterbukaan perdagangan berdampak positif pada pertumbuhan ekonomi, serta terdapat tantangan dan peluang dalam teori keterbukaan. Tujuan penelitian ini adalah untuk menganalisis perkembangan kinerja sektor pertanian dengan menggunakan analisis deskriptif dan menganalisis dampak keterbukaan perdagangan terhadap kinerja sektor pertanian dengan menggunakan analisis model panel statis di kawasan ASEAN. Hasil penelitian menunjukkan bahwa sektor pertanian di negara-negara ASEAN masih berkontribusi besar dilihat dari sisi makroekonomi, sisi sektoral, dan sisi perdagangan. Variabel keterbukaan perdagangan dan real exchange rate berpengaruh signifikan negatif terhadap PDB sektor pertanian. Lalu variavel tenaga kerja dan jumlah kredit berpengaruh signifikan positif terhadap PDB pertanian. Sedangkan variabel foreign direct investment memiliki hubungan yang tidak signifikan dan positif terhadap keterbukaan perdagangan.
Keyword: Trade Openness, Agricultural Sector, Panel Static Model

Judul: Dampak keterbukaan perdagangan terhadap pertumbuhan ekonomi di negara-negara Asean+3
Abstrak: Openness increases the integration of world goods and capital markets, contributing to potential gains in growth and welfare. Openness promotes the efficient allocation of resources through comparative advantage, allows the dissemination of knowledge and technological progress, and encourages competition in domestic and international markets. This study examines the impact of trade openness on economic growth in ASEAN+3 countries over the period of 1999-2008. This study then presents cross-country, panel data evidence on how the growth effect of openness may depend on a variety of structural characteristics. For this purpose, the empirical section used regression that interacts a proxy of trade openness with foreign direct investment, financial depth, inflation, public infrastructure, educational level, technological progress, and number of employment. The study found that trade openness have a positive impact on economic growth in this region over this period, specially in developed contries group i.e. Singapore, Japan, and South Korea. This positive impact can be significantly improved if some complementary reforms are undertaken.
Keyword: 

Judul: Penggunaan Teorema Homeomorphy 2-Manifold dan Teorema Euler Poincare pada Torus 𝑇�� dan Simplicial Complex 𝐾��
Abstrak: Two dimensional topological spaces are said to be homeomorphic if they have the same topological invariant, where one of topological invariant used is an Euler characteristic. Homeomorphy 2-Manifold’s Theorem and Euler Poincare’s Theorem are used to distinguish two topological spaces. Homeomorphy 2-Manifold’s Theorem uses Euler characteristic to identify two dimensional topological spaces. Euler Poincare’s Theorem is an alternative way to find Euler characteristic with Betti number, which is topological invariant as well. The objective of this paper is to investigate the homeomorphism of torus 𝑇����� and simplicial complex 𝐾�����. Topological space torus and simplicial complex 𝐾����� have the same Euler characteristic, which is two. Based on Homeomorphy 2-Manifold’s Theorem topological space torus 𝑇����� and simplicial complex 𝐾����� is homeomorphic.
Keyword: simplicial, torus, Euler, homeomorphism, topology