OMAHA, Neb. (AP) — Results from a monthly survey of business supply managers released Wednesday suggest economic conditions continue to improve in nine Midwest and Plains states, and that confidence in the regional economy is at its highest level in six years.

The Mid-America Business Conditions Index report said the overall economic index for the region rose to 54.7 in January from 53.1 in December and 46.5 in November. It's the highest figure since February 2015.

"This is the third consecutive month the index has increased, and (it) points to an improving regional manufacturing economy," sai...