Investigating the role of human capital in the economic growth of road transport in Iran using ARDL model

in this study, the role of human capital in the economic growth of the country's road transport has been studied. For this purpose, by collecting annual data and using the econometric pattern and Autoregressive Distributed Lag and the error correction model with the help of EVIEWS10 software, the model was estimated and the results were interpreted. The results show that both in the short and long term, with the increase in the capital of the manpower sector, the added value of the road transport sector increases So that if the input of manpower capital increases by one percent, the value added of the road transport sector will increase by 0.089 percent. The partial elasticity of labor input is 0.174, which shows that with a one percent increase in the labor force of the road transport sector, the value added of that sector will grow by 0.174 percent. Also, if the Capital Inventory Input increases by one percent, the value added of the road transport sector will increase by 0.183 percent. Another variable affecting the economic growth of the road transport sector is energy, which has a positive effect. Finally, according to the error correction factor in the ECM model, it can be stated that the adjustment speed is towards the equilibrium value and is suitable in the long run, so that in each period about 0.62 of the imbalance error is adjusted and in the short-term value is towards the equilibrium and long-term value.