A new study from Princeton University economists says white middle-aged Americans without college educations are dying at higher rates. Professors Anne Case and Angus Deaton wrote the study. It finds that men and women older than 45 but younger than retirement age are dying from what one expert calls deaths of despair. These include deaths from suicide, drug overdose or alcohol-related diseases. They say this is caused by the loss of middle-income jobs for those without a college degree. The economists also say that fewer job opportunities have created other problems for this group. The researchers say they are more likely than those with college degrees to be unemployed, unmarried or suffer from poor health.