Identification of preferences, demand and equilibrium with finite data
Raghav Malhotra and
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Felix Kubler: University of Zurich
Raghav Malhotra: University of Warwick
Herakles Polemarchakis: University of Warwick
The Warwick Economics Research Paper Series (TWERPS) from University of Warwick, Department of Economics
We give conditions under which an individual's preferences can be identified with finite data. First, we derive conditions that guarantee that a finite number of observations of an individual's binary choices identify preferences over an arbitrarily large subset of the choice space and allow one to predict how the individual shall decide when faced with choices not previously encountered. Second, we extend the argument to observations of individual demand. Finally, we show that nitely many observations of Walrasian equilibrium prices and pro les of individual endowments suffice to identify individual preferences and, as a consequence, equilibrium comparative statics.
Keywords: identification; finite data; preferences; choices; demand; Walrasian equilibrium JEL codes: D80; G10 (search for similar items in EconPapers)
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