Datastream
Thomson Reuters T1(SDC)
Thomson Reuters
Bloomberg
BLOOMBERG LP
WRDS
NYSE TAQ
Wharton Research Data Services
Compustat
Capital IQ
Standard & Poor's Financial Services, LLC
CRSP
The University of Chicago
CEIC
上海司尔亚司数据信息有限公司
上海万得信息技术股份有限公司
SAS
JMP
赛仕软件（北京）有限公司
MATLAB
The MathWorks, Inc
FT.com
The Financial Times Limited
