ThePurchasing Managers' Index (PMI)isan indicator produced byMarkit Group and the Institutefor Supply Management of financialactivity reflecting purchasing managers' acquisitionof goods and services. 采购经理人指数(PMI向委面停粉慢吧告)是由markit公司和供应管理学会(ISM)共同提出用以反映经济活动的综合性指标...