Steven Haider, Michigan State University (IMAGE) Michigan State University Caption The mystery of the black-white infant mortality gap has persisted for more than two decades, finds a study co-authored by Steven Haider, Michigan State University professor of economics. Credit Michigan State University Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.