On the relationship between hierarchy and type morphisms |
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Authors: | Amanda Friedenberg Martin Meier |
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Affiliation: | 1.Department of Economics,W.P. Carey School of Business,Tempe,USA;2.Institut für H?here Studien,Vienna,Austria;3.Instituto de Analisis Economico,Barcelona,Spain |
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Abstract: | Here, we establish a relationship between hierarchy and type morphisms. Both concepts have been used to relate the types in one structure to types in a second “larger” structure. In general, the two concepts may differ, in the sense that a hierarchy morphism need not be a type morphism. We provide a necessary and sufficient condition under which the two concepts coincide. We go on to provide situations under which this condition must be satisfied. |
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