زهرا نجفی - Department of Economics,University of Payame Noor, Tehran, Iran
مجید صامتی - Associate Professor of Economics, Faculty of Economic, University of Isfahan, Isfahan, Iran.
کریم آذربایجانی - Professor of Economics, Faculty of Economic, University of Isfahan, Isfahan, Iran.

The role of intra-industry trade has been emphasized in international commerce since the ۱۹۶۰s. Innovation and government size, which affect goods and services production and government presence in international commerce, have also been highlighted since then. This study examines the influence of these two factors on international trade and estimates their effects in linear and logistic transformation models from the years ۲۰۰۰ to ۲۰۱۶ using HS four-digit codes. This research focuses on ۲۰ main import and export industries of Iran and selected commercial partners. The authors estimate the model using the bidirectional panel data method and analyze the data using Stata ۱۵ software. Results indicate that in both models there is a U-shaped relationship (non-linear) between innovation and intra-industry trade. However, government size increases intra-industry trade in these models. Linder variables decrease intra-industry trade but GDP per capita increases intra-industry trade. Other control variables (geographical distance and membership in economic organizations) show the expected impact on intra-industry trade.

Intra-industry trade, Innovation, Government Size, Panel-Data, Schumpeterian Model