Adverse selection refers to the fact that "workers who have the highest probability of becoming unemployed have the highest demand for unemployment insurance." Adverse selection causes profit maximizing private insurance agencies to set high premiums for the insurance because there is a high likelihood they will have to make payments to the policyholder. High premiums work to exclude many individuals who otherwise might purchase the insurance. "A compulsory government program avoids the adverse selection problem. Hence, government provision of UI has the potential to increase efficiency. However, government provision does not eliminate moral hazard."