Purchasing Managers Index 采购经理指数

Purchasing Managers Index 采购经理指数

The Purchasing Managers Index, usually referred to as PMI, gives a snapshot of a country’s industrial activity. The PMI is a composite index of five "sub-indicators," including production levels, new orders, supplier deliveries, inventories and employment. A reading of 50 or higher generally indicates that the manufacturing sector is expanding, while a reading below 50 denotes a contraction. The earliest purchasing manager survey was conducted in the 1930s by the Institute for Supply Management. In some countries, the PMI index is also used to track the construction industry. The China Federation of Logistics & Purchasing and National Bureau of Statistics have jointly compiled the country's official PMI figures since 2005, based on a survey of more than 700 businesses.