Judul: Analisis Pendapatan Usahatani dan Tataniaga Buncis Organik dan Buncis Non-organik di Desa Cisondari, Kecamatan Pasirjambu, Kabupaten Bandung
Abstrak: As one of the best alternative for healthy lifestyle and sustainable environment, organic farming is increasingly demanded and the sell price is quite higher than anorganic vegetables. Among the organic farming system vegetables in Indonesia, one of them is fine beans produced in Cisondari Village. Cisondari Village is located in Bandung District and cultivated with both organic and anorganic system, though the number of anorganic farmers are higher than the organic one. The aims of this research are to analyze and compare the variability, income of fine beans farming, and R/C ratio in both organic and anorganic system; to analyze the flow of marketing channel and institutions involved in the trading system; and to analyze the margin trading system, the farmer’s share, and π/c ratio on organic and anorganic fine beans marketing. The result of this research concluded that the variabilities of both organic and anorganic fine beans are different in the input, output, and multiple stages of cultivation. Farm income and the ratio of R/C on anorganic fine beans have more benefits than the organic one. There are 3 marketing channels in organic trading system and 6 marketing channels in anorganic. The most efficient margin channel on organic fine beans trading system is the 3rd channel and the 4thchannel in anorganic one.
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Judul: Analisis Pendapatan Usahatani Sayuran Organik pada Yayasan Bina Sarana Bakti Kecamatan Cisarua Kabupaten Bogor
Abstrak: The high demand of organic vegetables and government’s program concerned in ‘Go Organic’ is an opportunity for the producers to develop organic vegetables in Indonesia, whereas Yayasan Bina Sarana Bakti (YBSB) is one of them. Until present, YBSB is not able to fulfill the consumer’s demand of certain organic vegetables, such as carrot, green spinach, caisin, cos lettuce, and broccoli; therefore YBSB plan to increase its bussiness scale to increase the production. YBSB has not been able to calculate the income levels of those vegetables, which is needed to analyze whether the bussiness is feasible to increase or not. Hence the purpose of this research is to analyze the feasibility of YBSB’s plan to increase its bussiness scale through farm income and R-C ratio analysis. The results of this research concluded that the plan to increase the bussiness scale of carrot, green spinach, and cos lettuce is feasible to run because they are profitable, meanwhile YBSB has to consider the plan to increase the bussiness scale of caisin and broccoli because they are less profitable.
Keyword: organic vegetables, Farm income

Judul: Approximation of the Median of Poisson Distribution Using the Relation of Poisson-Gamma Distribution
Abstrak: A major drawback of median is that median cannot usually be defined in closed form, even in the cases where their distribution functions are known. This study gives an approximation of the closed form for the median of the Poisson distribution by using the relation of Poisson-Gamma distribution. The approximation uses elementary techniques based on the monotonicity of certain sequences involving tail probabilities of the Poisson distribution and the Central Limit Theorem. Furthermore, a closed form expression for the mean absolute deviation 􀜧|􀜰􀰒 􀵆 􀜯􀝁􀝀􁈺􀜰􀰒􁈻| is also studied. The median is relevant because of the fact that it minimizes the mean absolute deviation of a Poisson random variable (􀜰􀰒􁈻 by considering median as central tendency.
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