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First Author:
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| Ronald Wendner |
| Graz University, Austria |
| ronald.wendner@uni-graz.at |
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| University of Graz, Department of Economics, Universitaetsstrasse 15, RESOWI F4 |
| Graz, A-8010, Austria |
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| ++43 316 380 3458(Phone) |
| ++43 316 380 3458(Fax) |
| http://www.uni-graz.at/ronald.wendner |
Second Author:
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| Richard Sturn |
| Graz University |
| richard.sturn@uni-graz.at |
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