We are examining Japanese pharmaceutical and biotechnology companies and are trying to develop a sample of firms that operated in the 1990s. We are using the Japan Company Handbook and are selecting companies that fall in the 1st and 2nd sections. We wonder whether we should also be including companies listed as
local, OTC, Jasdaq, new markets or unlisted? Are we introducing any bias in
our sample if we omit these latter companies?
Thanks in advance for any suggestions you have
Ed
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Edward Levitas, PhD
Associate Professor
<st1:place w:st="on"><st1:placename w:st="on">Sheldon</st1:placename> <st1:placename w:st="on">B.</st1:placename> <st1:placename w:st="on">Lubar</st1:placename> <st1:placetype w:st="on">School</st1:placetype></st1:place> of Business
University of Wisconsin-Milwaukee
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<st1:place w:st="on"><st1:city w:st="on">Milwaukee</st1:city>, <st1:state w:st="on">WI</st1:state> <st1:postalcode w:st="on">53211</st1:postalcode></st1:place>
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