TY  - BOOK
AU  - Faro,José Heleno
TI  - Cobb-Douglas preferences under uncertainty
SN  - 09382259
AV  - HB119 ECO 
PY  - 2013///
CY  - Berlin
PB  - Springer
KW  - Cobb-Douglas preferences
KW  - Expected utility
KW  - Ellsberg paradox
KW  - Knightian uncertainty
KW  - Incomplete preferences
KW  - MEU preference
N2  - This paper axiomatizes Cobb-Douglas preferences under uncertainty. First, we extend the original Trockel (Econ Lett 30:7–10, 1989)’s axiomatic foundation to a general state space framework based on the Strong Homotheticity Axiom, obtaining also the incomplete case a la Bewley (Decis Econ Financ 25:79–110, 2002). We show that this key axiom for the Cobb-Douglas expected utility specification is refuted by Ellsberg’s uncertainty aversion behavioral pattern. Our main result provides a set of meaningful axioms characterizing Cobb-Douglas min-expected utility preferences, an important class of uncertainty averse preferences for studying the consequences of ambiguity in finance and other fields. Finally, we present briefly how to obtain more general representations like the variational case
UR  - https://doi.org/10.1007/s00199-012-0738-7
ER  -