The effects of information and communication technology on long-term productivity growth: Evidence from Iran's manufacturing industries

The purpose of this paper is to measure the average share of information and communication technology in long-term productivity growth and as well as the increasing intensity of ICT index in Iran's manufacturing industries at the level of double-digit codes (ISIC). For this purpose, the expanded growth accounting model in the period2005-2018was exploited. The research findings revealed that : The effects of ICT has a significant positive effect on the average long-term productivity growth in Iran's manufacturing industries. ICT's share of long-term productivity growth in The most intensive contribution of ICT has been recognized for coke and related products, electrical equipment and chemicals and related products. This effect has shown more than any other manufacturing industries in Iran and this amount has also improved over time. The lowest share of ICT in productivity growth in the long run is related to furniture, clothing and machinery and not classified equipments. The results  also showed that the average value of increasing ICT intensity index is insignificant meaning the more  and with increasing intensity of ICT use, the more intense effect on productivity growth increases.