This paper examines certain factors that have contributed to the decline in fertility in the Gulf Cooperation Council G.C.C. countries in recent years, taking the United Arab Emirates “U.A.E.” as a case study. Employing data from the 2008 U.A.E. Household Expenditure Survey, this paper analyzes the determinants of fertility using a Poisson fertility count model. The results show that economic factors, in terms of the costs and benefits that families derive from children in the U.A.E. are not important determinants of fertility due to the large size of social insurance provided by the U.A.E. government. Moreover, labor market participation by either males or females do not play a critical role in determining fertility in the U.A.E. The two primary causes of declines in fertility are a) late marriages or late first births, and b) higher levels of female education. Other contributors to drops in fertility are marriages between U.A.E. national males and foreign females and increases in child birth intervals. Conversely, the size of household residences and the number of domestic workers working in a household contribute positively to fertility.