Investigating the Role of Labor in Production and Its Effect on Economic Growth of Iran's Road Transport Sector

Road transport as one of the factors of affecting economic, Displacement of goods and passengers, areas of access to facilities and national welfare increases and Investment in this sector as a key factor, determining a critical role in the road transport sector is growing. Therefore, the transitional capital of the department of road transport and the changes is important in this section and Understanding of the quantitative and qualitative, decision-making and planning in the road transport sector in the macro and micro levels, is important. 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 stockIncrease, the value added of road transport will grow 0.17 percent. Partial elasticity ofLabor is 0.54 that show increasing a percent in labor of road transport increased value added of road transport to 0.54. Another effective variables on factors of production in the Iran's road transport sector is energy consumption that has a positive impact and the effect is 0.22 that Show increasing a percent in energy consumption of this sector, increased value added of road transport to 0.22