The Ivey Purchasing Managers Index (PMI) is an economic index which measures the month to month variation in economic activity as indicated by a panel of purchasing managers from across Canada, and is prepared by the Richard Ivey School of Business. Using end of the month data it covers all sections of Canada's economy. The Ivey Purchasing Managers Index is often referred to as the Purchasing Managers Index, or PMI and is sponsored by the Richard Ivey School of Business and the Purchasing Management Association of Canada (PMAC).