We consider situations where the a priori guidance provided by theoretical considerations indicates only that the function linking the endogenous and exogenous variables is monotone and concave (or convex). We present methods to evaluate the adequacy of a parametric functional form to represent the relationship given the minimal maintained assumption of monotonicity and concavity (or convexity)...

A common theme in the theory of demand aggregation is that market demand can acquire properties which are not always individually present among the agents who make up that market, a phenomenon we call heterosis in this paper. This paper focusses on the well known result that with a suitable distribution of demand behavior (arising perhaps from the underlying distribution of preferences), market...

There are various approaches for QoS-based web service composition using GA (Genetic Algorithm). Most of them use the sum of the values of QoS properties times their weights as the fitness function of GA, to evaluate the QoS of service compositions. However, by using this function, the service composition calculated by GA has shortcomings. For example, response time of the produced service comp...

Penelitian ini bertujuan untuk menganalisis dampak Program Kartu Petani Berjaya terhadap produksi dan pendapatan usahatani padi di Kabupaten Pringsewu. dilakukan Pringsewu dengan jumlah sampel sebanyak 96 orang petani padi. Waktu penelitian pada tahun 2022. Metode analisis data yang digunakan adalah model fungsi Cobb-Douglas usahatani. Hasil menunjukan bahwa berpengaruh nyata mampu meningkatkan...

this study was conducted to determine a relationship between energy input and yield in greenhouse basil production in esfahan province, iran. data were collected from 26 greenhouse basil producers through a face-to-face questionnaire. the data collected belonged to the production period of 2009–2010 with the following results obtained. a total energy input of 236,057 mj ha-1 was estimated to be...