Estimate the Production Function in the Iran's Road Transport Sector by Using Translog Production Function

The road transport sector more important because the in Iran done the main contribution of the movement of goods and passengers by this section and efficient management and correct of activities for road transportation can accelerate the growth of this sector.
The objective of this paper is Estimate of production function in the Iran''s road transport sector using Translog production function during years of 1974-2011. The results show that if a percent Capital stock Increase¡ the value added of road transport will grow 16.86 percent. Partial elasticity of Labor is 14.26 that show increasing a percent in labor of road transport increased value added of road transport to 14.26. Another effective variable on factors of production in the Iran''s road transport sector is energy consumption that has a positive impact and the effect is 8.958 that Show increasing a percent in energy consumption of this sector¡ increased value added of road transport to 8.95.