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.
Ada is located in the rolling hills of southeastern Oklahoma. Ada is 88 miles (142 km) from Oklahoma City, 122 mi (196 km) from Tulsa, and 133 mi (214 km) from Dallas, Texas.