The MENA region commands abundant human and natural resources, accounts for a large share of world petroleum production and exports, and enjoys on average a reasonable standard of living. Within this general characterization, countries vary substantially in resources, economic and geographical size, population, and standards of living. At the same time, intra-regional interaction is weak, being restricted principally to labor flows, with limited trade in goods and services.
MENA covers a surface of over 15 million square kilometers and contains some 6 percent of the world's population, about the same as the population of the European Union (EU). The three smallest countries (Bahrain, Djibouti, and Qatar) each have a population of about half a million inhabitants. By contrast, the two largest countries (Egypt and the Islamic Republic of Iran) comprise about 60 million inhabitants each. Together with Algeria, Morocco, and Sudan, these five most populated countries account for about 70 percent of the region's population. About half the population lives in cities.