Genetic testing, adverse selection, and the demand for life insurance.

The dramatic increase in genetic testing for adult-onset diseases has created a debate regarding whether or not insurance companies should be able to use genetic test results in underwriting. We use data from women who have been tested for the BRCA1 gene mutation along with data from otherwise comparable untested women to assess the potential for adverse selection in the life insurance market when tested individuals know their genetic test results but insurers do not. Our analyses show that women who test positive for the BRCA1 gene mutation do not capitalize on their informational advantage by purchasing more life insurance than those women who have not undergone genetic testing.