The Southeast Michigan Purchasing Managers Index rose to 66.1 in March, the highest reading since last May. An index above 50 indicates economic expansion. The three-month average is 65.7. “Production, new order activity and employment all showed solid growth in March, pointing to a stronger economy,” said Nitin Paranjpe, an economist and supply chain faculty member at Wayne State University’s business school. Paranjpe analyzed the survey data, gathered in conjunction with the Southeast Michigan chapter of the Institute for Supply Management. “In this time of high unemployment, the stronger economy is paradoxically leading to some labor shortages, especially in industrial, mechanical and electrical engineers,” Paranjpe said. “This may lead to high wage pressures for engineers.” Fox 2 business editor Murray Feldman aired a report during this morning’s “Money Works” segment.