Purpose: Risk and return are the most important components in the financial and investment world and the existence of a better balance between them with the goal of the best solution for investing in different assets has always been studied and discussed by researchers. For this purpose in this...

While there is much evidence to support the resource curse hypothesis for resource-abundant countries, some studies have found that oil booms raise the economic growth of oil-exporting countries. This paper examines the issue of the existence of the threshold effects in the relationship between...