The aim of this work is to describe a model of representative bubbles with infinitely lived agents that is accessible to a general audience. In particular, we shall compare this formalization of behavioral bubble dynamics with the classic rational one. The key role of the transversality condition for rational models will be clear, and we will discuss the necessity of its fulfillment when agents are not rational and arbitrageurs are faced with limited arbitrage possibilities. We shall analyze in detail what kind of nonrationality is taken into account and how it triggers bubbly dynamics. It will be plain that representative bubbles can explain the presence of bubbles even when rational models are not able to detect them.

Classic rational bubbles and representativeness / Ferrara, Massimiliano; Pansera, B. A.; Strati, F.. - In: DECISIONS IN ECONOMICS AND FINANCE. - ISSN 1593-8883. - 41:1(2018), pp. 19-34. [10.1007/s10203-018-0205-4]

Classic rational bubbles and representativeness

FERRARA, Massimiliano
Supervision
;
Pansera B. A.
Methodology
;
2018-01-01

Abstract

The aim of this work is to describe a model of representative bubbles with infinitely lived agents that is accessible to a general audience. In particular, we shall compare this formalization of behavioral bubble dynamics with the classic rational one. The key role of the transversality condition for rational models will be clear, and we will discuss the necessity of its fulfillment when agents are not rational and arbitrageurs are faced with limited arbitrage possibilities. We shall analyze in detail what kind of nonrationality is taken into account and how it triggers bubbly dynamics. It will be plain that representative bubbles can explain the presence of bubbles even when rational models are not able to detect them.
2018
Efficient market hypothesis · Bubbles · Transversality condition · Diagnostic expectations
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.12318/4775
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