In this paper, equivalence relation and long term of seven variables: Gross domestic product growth rate, labor force growth rate, private investment, public investment in transportation infrastructure, the difference between public investment and public investment in transportation infrastructure, growth rate of export of goods and services and growth rate of imports of goods and services and also their influences on each other in Iran for years 1973 to 2008 have been analyzed. For this purpose, vector autoregressive model (VAR) has been used. The First stability of variables by the use of dickey-fuller test has been examined. Next, analysis of Johnson test for considering the convergence among seven variables has been used. The results of this research show that variables of labor force growth rate, the difference between public investment and public investment in transportation infrastructure and growth rate of imports of goods and services have negative effect on economic growth and variables of private investment, public investment in transportation infrastructure and growth rate of export of goods and services has a positive effect on economic growth.

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