the two-stage estimation of energy consumption function in iran industry; based on logic model

knowledge of energyconsumption has many uses in industry. factors that are energy dependent have already been studied hence decision making on them are easier. energy demand studies of industry helps us to learn factors that are responsive to this demand. therefore planners can use these collected data in their decision making using the above factors. another use of energy demand can be used as a tool in the aforementioned study. in our current study, energy consumption in industry as a whole or in parts is the focus of our attention. therefore a two stage procedure is used. in the first stage total consumption of energy, and in the second stage the energy consumption is broken down into detailed components. these components are natural gas, oil products, coal and electricity. in many of similar studies, translog function is used as a cost function. in this study, along with examining this function, logic function is also used. the reasons for not using translog function is the estimation of first and second stages of energy demand using the logic function. also the properties of logic model and procedure of forecasting are distinct and conclusive result of this paper