TY  - UNPD
A1  - Adam, Klaus
T1  - Learning and equilibrium selection in a monetary overlapping generations model with sticky prices
T2  - CFS working paper series ;  2003, 03
N2  - We study adaptive learning in a monetary overlapping generations model with sticky prices and monopolistic competition for the case where learning agents observe current endogenous variables. Observability of current variables is essential for informational consistency of the learning setup with the model set up but generates multiple temporary equilibria when prices are flexible and prevents a straightforward construction of the learning dynamics. Sticky prices overcome this problem by avoiding simultaneity between prices and price expectations. Adaptive learning then robustly selects the determinate (monetary) steady state independent from the degree of imperfect competition. The indeterminate (non-monetary) steady state and non-stationary equilibria are never stable. Stability in a deterministic version of the model may differ because perfect foresight equilibria can be the limit of restricted perceptions equilibria of the stochastic economy with vanishing noise and thereby inherit different stability properties. This discontinuity at the zero variance of shocks suggests to analyze learning in stochastic models.
T3  - CFS working paper series - 2003, 03 
KW  - adaptive learning
KW  - sticky prices
KW  - temporary equilibrium
Y1  - 2003
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/4483
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30-10094
N1  - Revised version published in: Review of Economic Studies, Vol 70 (4), pp. 887-908, 2003
ER  -