2. SDC new issues database中的spin off CUSIP在dsenames中几乎都找不到。
给的parent cusip大多是母公司cusip。那么s-1 filing的那些公司,是母公司,还是子公司呢?应该是母公司吧???
3. SAS proc SQL
[PDF]SAS 9.3 SQL Procedure User's Guide
support.sas.com/documentation/cdl/.../sqlproc/.../PDF/.../sqlpro...SAS InstituteThe correct bibliographic citation for this manual is as follows: SAS Institute Inc 2011.SAS® 9.3 SQL Procedure User's Guide. Cary, NC: SAS. Institute Inc.
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