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1Published 1995“...Department of economics and statistics...”
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2
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3Published 1982“...Department of economics and statistics...”
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4
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5Published 1985“...Department of economics and statistics...”
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6Published 1986“...Department of economics and statistics...”
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7Published 1986“...Department of Economics and Statistics...”
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8
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9Published 1986“...Department of economics and statistics...”
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