Economic Activity Index Up 4.2 Percent In September
DETROIT - Comerica Bank?s Michigan Economic Activity Index grew in September, up 4.2 percentage points to a level of 129.4. September's reading is 57 points, or 79 percent, above the index cyclical low of 72.1. The index averaged 114 for all of 2012, 11 points above the index average for 2011. August's index reading was