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st: combining surveys

From   new user <>
Subject   st: combining surveys
Date   Mon, 6 Feb 2012 01:30:25 +0000

dear statalist
i have two datasets referred to two different years and collected
through surveys where each person was interview only in one occasion.
apart from years and participants, surveys are identical for all the
variable they include.
can i combine the surveys (introducing a year dummy)?
i understand this seems a very basic question, but i would appreciate an answer.
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