Columbia subject headings:
Middle East--Economic integration.
Middle East--Economic policy.
Harvard subject headings:
Arab countries--Economic conditions--Statistics.
Arab countries--Economic integration.
Arab countries--Economic policy.
Middle East--Economic conditions--Statistics.
Middle East--Economic integration.
Middle East--Economic policy.
Princeton subject headings:
Arab countries--Economic conditions--Statistics.
Arab countries--Economic integration.
Arab countries--Economic policy.
Statistics.