The article explores how to manage the uncertainty of future survival rates for different groups of people, known as longevity risk. It suggests that annuity providers can hedge this risk more effectively by eliminating basis risk. The study also shows that higher unsystematic mortality rates can impact real returns in the stock market, with certain industries being more affected than others. Overall, the research indicates that managing longevity risk can be done at a relatively low cost and that mortality rates can influence financial markets in complex ways.