Judul: The Policy Directions to Control Land Use Allocation for Residential Area Through Fiscal Instruments in Depok Municipality
Abstrak: Over the last three decades, the population of Depok Municipality has experienced a significant increase. The residential area development has in particular become the prime sector in driving Depok’s rapid development, notably due to its strategic location as a satellite city of Jakarta. This phenomenon has led to the uncontrolled increase of house selling prices and land-use conversion from green open lands to built-up areas. Therefore, some efforts should be done to control the increase of house selling prices and the land-use conversion. One avenue of government interventions dealing with the negative externalities caused by rapid residential area development would be by using various fiscal instruments, such as infrastructure restriction and tax imposition. Against this background, the main objective of this study is to provide the policy directions to control land-use allocation for the residential area through fiscal instruments. To this end, three intermediate objectives are proposed, namely: (1) to identify the determining factors underlying the house selling price, (2) to analyze the correlation between the residential area and property tax (PBB-P2) revenue, and (3) to analyze the comparison of the spatial distribution patterns between the residential area and PBB-P2 revenue. In doing so, Ordinary Least Square (OLS) regression and Geographically Weighted Regression (GWR) were employed to identify the determining factors of the house selling price. Moreover, Pearson Correlation was used to analyze the correlation between the residential area and PBB-P2 revenue. Lastly, Global and Local Moran’s Index were applied to analyze the comparison of the spatial distribution patterns between the residential area and PBB-P2 revenue. The analysis of OLS regression reveals that the structural dimensions and locational attributes or infrastructure contribute significantly in determining the house selling price. The analysis of GWR shows that the locational attribute, especially distance to the Central Business District (CBD) of Jakarta, is considered as an effective instrument to control the house selling price in Depok. In addition, the results from Pearson Correlation and Local Moran’s Index indicate that PBB-P2 does not play an effective role as an instrument in steering residential areas in Depok. Based on the above analyses, the policy directions to control land-use allocation for the residential area in Depok were formulated, notably by imposing measures related to restriction of distance to the CBD of Jakarta and by improving the performance of PBB-P2 revenue. The policy directions can also be locally applied in the way that every village (kelurahan) in Depok has its specific priority. For examples, the policy directions for Jatijajar, Tapos, Leuwinanggung, Sukatani, Cilangkap, Ciampaeun, and Kukusan Villages focus more on improving the performance of PBB-P2 revenue. On the other hand, Mekarsari Village is directed to focus more on the restriction of the CBD of Jakarta.
Keyword: land-use control, Hedonic Price Model, Geographically Weighted Regression, Moran’s Index

Judul: Study About Factors Influencing Transition of Green Open Spaces Based on Analysis of Land Use in Depok City, West Java, Indonesia
Abstrak: This study focused on land development in Depok City located south of Jakarta. Although Depok enjoys a tropical climate, it is necessary to consider the distribution of land use within the city, especially green open spaces. Depok is a commercial center and a public utilities center, where water is stored to supply ground water as buffer city of Jakarta. Moreover, it is a hotspot of education and residential area development. Depok is influenced strongly by land development in Jakarta, and further economic growth is expected. The purpose of this study is to understand the transition of green open spaces and land use types in Depok to reveal the changes in the of area of green open spaces in Depok and to identify the factors influencing the transition of green open spaces in Depok. To identify the factors influencing the transition of green open spaces, binomial logistic regression analysis was used. The dependent variable was the area of green open space converted into non-green open space, and the independent variables included distance from commercial facilities, distance from industrial areas, distance from educational areas, distance from hospitals, distance from rivers, distance from lakes, distance from main roads, distance from a highway, distance from a highway entrance, distance from a railroad station, and distance from inundation-prone areas. It was revealed that the area of green open space has rapidly decreased in Depok, especially from 2005 to 2015. Two factors particularly influenced the transition of green open spaces, where a greater proximity to educational areas or main roads was associated with a greater reduction in green open space. Also, the distance from hospitals and lakes were associated with the maintenance of green open spaces in Depok. For residents, convenience is improved in areas close to educational areas or main roads; therefore, it is conceivable that buildings such as housings are increasing accordingly in such areas. Keywords:binomial logistic regression analysis, green open space, land use
Keyword: Binomial logistic regression analysis, Green open space, Land use

Judul: Embriogenesis ikan buta (Astyanax fasciatus)
Abstrak: Ikan buta Astyanax fasciatus adalah spesies ikan unik dari famili Characidae yang menempati perairan dalam gua di Wilayah La Cueva Chica-San Luis Potasi-Mexico. Ikan ini memiliki mata yang tereduksi (Blind Cavefish) dan warna kulit merah muda, pucat serta mengkilap.
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