China"s one child policy and increased access to medical technology has led to one of the world"s highest sex ratios at birth, says Rice University student Mark Seraydarian, who is studying global populations this summer at the American Enterprise Institute through the Baker Institute"s Jesse Jones Leadership Center Summer in D.C. Policy Research Internship Program.

The imbalance of males and females has serious implications for China: a growing black market for brides, higher crime rates and greater social unrest. However, Seraydarian notes that that the East Asian nation is not alone. Lopsided sex ratios are being recorded in the Caucasus region and other parts of Europe, as well as in certain communities in the United States.