مطالب

Spillovers have attracted wide attention in the areas of research in economics during the past decades. The reason for the interest in the topic lies in their important role in endogenous growth theory and the explanation of productivity growth. This paper investigates the spatial spillover of different types of public infrastructure on economic growth across EU-28 NUTS-II regions during 1995-2015. Particularly, we developed the previous studies by consedeing spillover in all types of the GDP sector composition including agriculture, industry, and services. The spatial Durbin panel data model is employed to consider spatial spillovers of both public infrastructure and economic growth. Empirical results show the positive spatial spillovers of communication infrastructure in all the sectors. The spillover effect of transport infrastructure is positive in the service and agricultural sector, whereas it is negative in the industry sector. Moreover, the spillover effect of local infrastructure is insignificant in all three sectors. Finally, we find significant evidence of positive geographical spillovers of economic growth implying spatially-growth dependency of regions to growth rate of neighboring regions. JEL Classification: H54, O47, C21

Crude oil is the most traded commodity in the world and its market has great influences on the global economy and macroeconomic activities. The present study seeks to analyze Iran's policy for oil production and export within the framework of an intra-OPEC bargaining game.  This analysis helps to review Iran’s oil policy and to propose an appropriate strategy in the new circumstances. The analysis of strategic relations shows that OPEC members can be divided into two groups of saver and spender countries. This categorization is due to economic, demographic, and petroleum differences among OPEC countries. OPEC members are different in terms of discount rates, impatience, and the urgent need for oil revenues too. The authors of this study have tried to model the relationship between oil quotas/production and demographic, economic, and oil variables based on the Intra-OPEC bargaining game. The model estimated for the period 2001-2019. The results indicated a strong and significant relationship between the ratio of oil production to oil reserves and demographic, economic, and oil variables. Bargaining between the two groups can largely determine the behaviors of OPEC and its members. The model estimation suggested that the oil market faces a tendency towards faster production and export in response to the shift in world oil market outlook. The results suggest that Iran's oil production capacity, the market share of Iran and recovery rates should be upgraded. Finally, the current role of Iran in OPEC does not fit into its economic needs and should be reviewed based on the above results. The study indicated that the inherent heterogeneity in OPEC still helps Iran plan to achieve its historic quota and position in OPEC. JEL Classification: C07, D74, L13, L16.