The determinants of the technical efficiency (TE) of adopters and non-adopters of soil and water conservation (SWC) technologies in the upper Rwizi micro-catchment of south-western Uganda are compared using cross-sectional survey data from 246 smallholder farmers. A Cobb-Douglas stochastic production frontier and a probit selection model fitted to generate inverse Mills ratios for adopters and ...

The study aimed to measure the technical efficiency in production of crops (wheat and barley) Erbil Governorate. Using stochastic frontier analysis method Maximum-Likelihood (ML) Model, which combines both effects inefficiency models. based on preliminary data collected randomly for a sample 58 farms used Cobb-Douglas function using four traditional factors, are (land, labor, machinery, fertili...

This study reports the results of farmers’ production via irrigation resources utilization and efficiency parameters technical allocative by way sustainable environmental economics. The hypothesis is that factors affect in scheme as Data from cross section panel data were used then productivity measurement function are outlined two scenarios: first, report such output elasticity determine ineff...

The logging industry of the Amazon is a topic that has received little attention in the literature, beyond specific single firm case studies. This has not allowed estimation of cost and production functions that can be used to predict changes in the industry in response to external market factors or government policies. Cost functions and rents are very important to characterize the dynamics of...

Many real life situations can be described using twice continuously differentiable functions over convex sets with interior points. Such functions have an interesting separation property: At every interior point of the set they separate particular classes of quadratic convex functions from classes of quadratic concave functions. Using this property we introduce new characterizations of the deri...

Production frontiers, technical efficiency, survey of applications. The modelling and estimation of frontier production functions has been an important area of econometric research during the last two decades. F~rsund, Lovell and Schmidt (1980) and Schmidt (1986) present reviews of the concepts and models involved and cite some of the empirical applications which had appeared to their respectiv...

In this article, the optimized geometry, IR and UV spectra, frontier orbital analysis, natural bond orbital (NBO) analyses, and thermodynamic parameters of pomalidomide were investigated. The calculated structural parameters and stretching frequencies values are compared with experimentalvalues of the investigated compound. Also, the relations of the thermodynamic functions vs.temperatures were...