Adverse selection occurs when one party in a transaction has more information than the other, especially in insurance and finance-related activities.
For other uses of Ada, see Ada (disambiguation). Ada is a city in and the county seat of Pontotoc County, Oklahoma, United States. The population was 16,810 at the 2010 census, an increase of 7.1 percent from 15,691 at the 2000 census. The city was named for Ada Reed, the daughter of an early settler, and was incorporated in 1901.
The Secretary of the Interior chose Alva as the seat of County M when Oklahoma Territory was organized in 1890. A U.S. government land office opened there before a presidential proclamation on August 19, 1893, opened the Cherokee Outlet for general settlement.