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Thank you in advance, Keith -- Keith Finlay Assistant Professor Department of Economics 206 Tilton Hall Tulane University New Orleans, LA 70118-5698 504-208-5897 504-865-5869 fax http://greenspace.tulane.edu/kfinlay * * For searches and help try: * http://www.stata.com/help.cgi?search * http://www.stata.com/support/statalist/faq * http://www.ats.ucla.edu/stat/stata/