The population in the current GCC states has grown more than eight times during 50 years. Foreign workers have become the primary, dominant labor force in most sectors of the economy and the government bureaucracy. With rising unemployment, GCC governments embarked on the formulation of labor market strategies to improve this situation, to create sufficient employment opportunities for nationals, and to limit the dependence on expatriate labor. Restrictions have been imposed: the sponsorship system, the rotational system of expatriate labor to limit the duration of foreigners' stay, curbs on naturalization and the rights of those who have been naturalized, etc. This has also led to efforts to improve the education and training of nationals. Localization remains low among the private sector, however. This is due to the traditionally low income the sector offers. Also included are long working hours, a competitive work environment, and a need to recognize an expatriate supervisor, often difficult to accept.