The Midwest Economy Index (MEI) is a monthly index designed to measure growth in nonfarm business activity in the Seventh Federal Reserve District. It serves as a regional counterpart to the Chicago Fed National Activity Index (CFNAI). The MEI is released at 8:30 a.m. ET on scheduled days, normally toward the end of each calendar month.

Estimates for annual growth in real gross state product (GSP) are made available on a quarterly basis following the U.S. Bureau of Economic Analysis's final release of real gross domestic product (GDP) data for each quarter.