PMI Surveys track sentiment among purchasing managers at manufacturing, construction and/or services firms. An overall sentiment index is generally calculated from the results of queries on production, orders, inventories, employment, prices, etc. Target Audience: supply management professionals Sample Size: 300 individuals Date of Survey: through the month The Non-Manufacturing Index is a composite index of four indicators with equal weights: Business Activity, New Orders, Employment and Supplier Deliveries. An index reading above 50% indicates an expansion and below 50% indicates a decline in the non-manufacturing economy. Where as per Supplier Deliveries Index, above 50% indicates slower deliveries and below 50% indicates faster deliveries.