Judul: Dampak Investasi Terhadap Kinerja Perekonomian: Studi Komparasi Penanaman Modal Dalam Negeri dan Penanaman Modal Asing di Jawa Timur
Abstrak: Domestic and foreign investment play an important role in the East Java economy. However, within these past five years the growth of both types of investment has been fluctuated and tends to decrease. One of the objectives research is to analyze factors affected economic variables of East Java province: Gross Regional Domestic Product (GRDP), inflation and unemployment. This research is conducted using econometric model that formulated in simultaneously equation with approximated Two Stage Least Squares (2SLS). Results of this study show that GRDP is influenced by real domestic investment, a change in real foreign investment, time trend, dummy of decentralization and the last year GRDP. Inflation is influenced by GRDP, time trend and the last year inflation. Unemployment is affected by real domestic investment, time trend and the last year unemployment. The simulation also shows that an increase in domestic and foreign investment have the same positif impact on GRDP and inflation but negative impact on unemployment. Further, foreign invesment has a greater impact on GRDP and unemployment compared to domestic invesment, conversly.
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Judul: Dampak Tata Kelola Pemerintahan Daerah Terhadap Realisasi Investasi di Provinsi Jawa Timur
Abstrak: Regional governance is one of important supporting factors in stimulating investment realization in every region. The aims of the study are (1) to describe the perceptual difference among businessmakers in East Java based on regional governance survey held by KPPOD (Komite Pemantauan Pelaksanaan Otonomi Daerah) in 2007 and 2010, (2) to analyze the linkages between regional governance and investment realization in East Java, and also (3) to analyze the impact of regional governance to investment realization in East Java. Data used in this research consist of 2 period, 2005-2007 and 2008-2010, and 38 districts and municipals in East Java. Data are taken from Investment Coordinating Board, Central Bureau of Statistics Indonesia and Directorate General of Fiscal Balance (DJPK). Methods used are descriptive statistic ,using Pearson and Spearman correlation, and also static panel data regression. Perceptual difference on the latter survey, as the first result, found to be significantly better and even worse than the previous one for some major variables . Results also showed that there is a strong linkage between foreign direct investment, domestic private investment, public investment and regional governance. The elements of regional governance that affected domestic investment are percentages of businessmaker having business licence (Tanda Daftar Perusahaan) and also dummy of regional government program in promoting local potential product/commodity. The elements of regional governance that affected foreign direct investment are dummy of donation barrier to the regional government, dummy of the regent/municipal’s comprehension to the business matters and dummy of the quality of road infrastructure.
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Judul: Hydroxyapatite-Chitosan Composite Coating on Stainless Steel 316 to Improve Corrosion Resistance
Abstrak: Metals that were used in bone implantation should have good corrosion resistance that were not easily corroded when implanted into the body. Metal corrosion resistance of stainless steel 316 can be enhanced through the metal coating by hydroxyapatite-chitosan composite with composition ratio of hydroxyapatite (gram) and chitosan 3% (mL) 0.2:0, 0.2:0.1, 0.2:0.5, 0.2:1.0, and 0.2:1.5. Besides improving the corrosion resistance of metal, the presence of chitosan also maintain the position of hydroxyapatite on metal surfaces. Corrosion resistance increases with increasing amount of chitosan added and the best composition of hydroxyapatite-chitosan composite was 0.2:1.0.
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