nowadays, factor of energy besides other factors such as labor and capital plays an important role in agricultural production. energy is used as a factor for agricultural machines and instruments. important discussion about this subject is the reaction rate of energy demand to price variations of energy and other factors. so, this study estimates the functions of energy demand in agricultural s...

an indirect tarns-log production function was employed to estimate the demand functions for such inputs as: fertilizer, seed, pesticide, water recourse and machinery as subject to budget constraint and while using data related to cotton producers in the three provinces of north khorasan, khorasane razavi, and south khorasan in 2007-8. lagrange coefficients with relation to cotton producers in t...

about 60 percent of the world's known reserves of oil reside in the middle east region. as such, any developments of this region are of utmost importance for the world economy. the strait of hormuz is the export conduit for 90 percent of the oil of the countries bordering the persian gulf, supplying 40 percent of world oil consumption, and is controlled by our country. since assessment of ...

abstract export of nonoil goods in economic activities is so important and its effect on economic and comparative growth is undeniable. so, emphasize on agricultural sector and development of export in this sector prepares good conditions, for iran, to be present at international markets relying its advantages. the study tries to recognize necessary policies to enhance agricultural export poten...

In this paper we investigate (1) the measurement of health status for both adults and children) (2) the importance of health status measures in demand analysis for medical care) and (3) attitudinal measures toward health care and their role in demand for medical care. Finally we develop a structural model of demand for medical care) incorporating a number of health status measures as indicators...

We present a comprehensive study of utility function of the minority game in its efficient regime. We develop an effective description of state of the game. For the payoff function g(x) = sgn(x) we explicitly represent the game as the Markov process and prove the finitness of number of states. We also demonstrate boundedness of the utility function. Using these facts we can explain all interest...

most regions of iran are confronted with inadequate supply and excessive demand of water in agriculture sector mainly resulting from a high difference between water providing cost and its price. coping with such a challenge needs to determine the water price based on the economic principles and its value in agricultural production. the aim of this study was to determine the economic value of th...

The main goal of this study was to investigate the way of affecting of water in production of cucumber. From aspect of econometrics, mutual relationships of production function and expenses have been analyzed in which Translog cost function has been used. This function has been estimated using the conditional input demand functions, the shefard theorem, chemical fertilizer, animal fertilizer, l...