This paper presents new results of mathematical modeling of economy and environment interaction. A model of mutual interaction of livestock farming - one in a two main agricultural branches - and natural pastures that are the essential part of livestock farming forage reserve is proposed....

A nonstochastic Malmquist Index and a stochastic frontier production function are estimated to examine agricultural productivity growth in Chinese provinces during the 1990’s. Results for both methods indicate high productivity growth in the mid 1990’s with a declining trend thereafter....

The income contribution of child work is undoubtedly a key factor influencing child work and schooling decisions. Yet, few studies have attempted to directly measure this contribution. This is particularly the case for work performed on the household farm, as is the case for the vast majority of...

Roy’s safety-first rule is used to provide measures popular with farmers of short and long term business risk associated with various no-till transition strategies over an investment horizon. The short run rule provided more sensitivity to inter-year financial risk than other commonly used...

This study is based on primary data collected from randomly chosen 182 households inhabiting seven sample villages in the Udalguri subdivision, Assam (india). It indicates that at least 35.85 percent of the population (and 33.52 percent of households) in the sample villages is below poverty line...

The study analyses the effects of CAP direct payments and their modulation on farm profitability for a sample of 369 farms in the Navarra region of Spain. Cost-revenue ratios are calculated in order to highlight the impact of CAP direct payments, modulation and the valuation of own production...

In this study we make an attempt to visualize the structure of the economy of Udalguri Subdivision of Assam, India. The structure of an economy comprises the characteristic features of and the interrelationships among its constituent parts and subsystems. These characteristic features and...

Linear programming model and general reciprocity theorem in mathematical programming are used to ap-proach utility functions of six large-scale Russian (the Moscow Region) case farms representing different production patterns. Technological coefficients of linear programmes are defined by means...

Many production processes yield both good outputs and undesirable ones (e.g. pollutants). In this paper, we develop a generalization of a stochastic frontier model which is appropriate for such technologies. We discuss efficiency analysis and, in particular, define technical and environmental...

The rapid increase in adult mortality due to the AIDS epidemic in sub- Saharan Africa raises great concern about its impact on child welfare. This article estimates the impact of AIDS-related adult mortality on primary school attendance in rural Kenya using a panel of 1,266 households surveyed...