ON THE CONVEXITY OF VALUE FUNCTIONS FOR A CERTAIN CLASS OF STOCHASTIC DYNAMIC PROGRAMMING PROBLEM
It is a common practice in stochastic dynamic programming problems to assume a priori that the value function is either concave or convex and later verify this assumption after the value function has been identified. It is often a difficult task to establish the concavity or convexity of the value f...
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| Veröffentlicht in: | Stochastic analysis and applications Jg. 20; H. 4; S. 783 - 789 |
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| Hauptverfasser: | , |
| Format: | Journal Article |
| Sprache: | Englisch |
| Veröffentlicht: |
Philadelphia, PA
Taylor & Francis Group
28.08.2002
Taylor & Francis |
| Schlagworte: | |
| ISSN: | 0736-2994, 1532-9356 |
| Online-Zugang: | Volltext |
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| Zusammenfassung: | It is a common practice in stochastic dynamic programming problems to assume a priori that the value function is either concave or convex and later verify this assumption after the value function has been identified. It is often a difficult task to establish the concavity or convexity of the value function directly. In this paper, we prove that the value function of a certain type of infinite horizon stochastic dynamic programming problem is convex. This type of value function arises frequently in economic modeling. |
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| ISSN: | 0736-2994 1532-9356 |
| DOI: | 10.1081/SAP-120006107 |