Clemens August Andreae (1929 – 26 May 1991) was an Austrian economist who served as a professor of political economics and the dean of law and political sciences for the University of Innsbruck. He wrote a book called ''Der größere Markt – Wirtschaftsintegration vom Atlantik bis zum Ural'' ("The Larger Market – Economic Integration from the Atlantic to the Urals"). Andreae was scheduled to give the opening speech for the 1986 Salzburg Festival; the opening speech is typically given by a prominent scientist or artist. Andreae replaced Ralf Dahrendorf, a West German sociologist and professor, who withdrew the pledge because he did not want to speak to an audience that included Kurt Waldheim, the president of Austria.
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