In this paper we study the long- term trend of energy intensity for Iran. We use a quadratic function of the logarithm of income to take account of the change in trend of energy intensity and test the non-monotonic relationship between energy intensity and income during 1967- 2002 We find that the long-run coefficient on squared income is negative and significant, indicating a change in trend of energy intensity.
(2006). A Change in Energy Intensity: Test of Relationship between Energy Intensity and Income in Iran. Iranian Economic Review, 11(15), 123-130. doi: 10.22059/ier.2006.30852
MLA
. "A Change in Energy Intensity: Test of Relationship between Energy Intensity and Income in Iran". Iranian Economic Review, 11, 15, 2006, 123-130. doi: 10.22059/ier.2006.30852
HARVARD
(2006). 'A Change in Energy Intensity: Test of Relationship between Energy Intensity and Income in Iran', Iranian Economic Review, 11(15), pp. 123-130. doi: 10.22059/ier.2006.30852
VANCOUVER
A Change in Energy Intensity: Test of Relationship between Energy Intensity and Income in Iran. Iranian Economic Review, 2006; 11(15): 123-130. doi: 10.22059/ier.2006.30852
)