Pheromone-baited traps have been widely used in integrated pest management programs, but their economic value for growers has never been reported.  We analyzed the economic benefits of long-term use of traps baited with the citrus fruit borer Gymnandrosoma aurantianum sex pheromone in Central-Southern Brazil. Our analysis show that from 2001 to 2013 citrus growers avoided accumulated pest losse...

Kemampuan perusahaan dalam menghasilkan laba dan mengukur efektifitas pada manajemen adalah pengertian dari rasio profitabilitas. Pada penelitian ini digunakan 15 sampel laporan tahunan sub sektor konstruksi yang terdapat Bursa Efek Indonesia (BEI) 2 profitabilitas sebagai perhitungan utama yaitu Gross Profit Margin (GPM) Net (NPM) menggunakan k-means clustering metode data. Tujuan untuk megkaj...

in this study economic and welfare impacts of establishing irrigation water market in qazvin province as well as potentiality of irrigation water transfer under stress irrigation conditions in the cities of qazvin province were analyzed. to achieve the above objectives, positive mathematical programming model and state wide agricultural production functions were used. to achieve applicable resu...

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Since its outbreak in 2013 Italy, the harmful bacterium Xylella fastidiosa has continued to spread throughout Euro-Mediterranean basin and, more recently, Middle East region. subsp. is causal agent of Pierce’s disease on grapevines. At present, this alien subspecies not been reported Lebanon but if biological invader was with no cost-effective and sustainable management, it would put Lebanese v...

Based on data from firms in the personal computer industry, we study the effect of new product introductions on three key drivers of firm value: profit rate, profit-rate persistence, and firm size as reflected in asset growth. Consistent with our theoretical development, we find that new product introductions influence profit rate and size; however, we find no effect on profit-rate persistence....

Specialty crops are considered high-risk, high-reward, yet growers face differing, and relatively larger risk exposure when compared to traditional row crops. With crops, economies of scale scope key factors increasing economic profitability. However, profit for specialty crop operations present challenges which limit grower ability easily take advantage economies. The authors discuss productio...