Uncertainty, conventions and short-term expectations

ABSTRACT Contrasting different views on the topic, this article examines whether short-term expectations involve uncertainty, arguing in favour of an affirmative answer and thus invalidating any association with the rational or adaptive expectations hypothesis. It is then argued that the presence of...

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Veröffentlicht in:Brazilian Journal of Political Economy 2022-04, Vol.19 (3), p.470-484
1. Verfasser: DEQUECH, DAVID
Format: Artikel
Sprache:eng
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Zusammenfassung:ABSTRACT Contrasting different views on the topic, this article examines whether short-term expectations involve uncertainty, arguing in favour of an affirmative answer and thus invalidating any association with the rational or adaptive expectations hypothesis. It is then argued that the presence of uncertainty precludes any tendency towards equilibrium. After the notion of the state of short-term expectations is introduced, this conclusion is affirmed to be valid even if one considers that producers often follow conventional behaviour. Defending the view that uncertainty should be considered as gradable, the article maintains that conventions reduce but do not eliminate uncertainty. RESUMO Contrastando diferentes visões sobre o tema, este artigo examina se as expectativas de curto prazo envolvem incerteza, argumentando a favor de uma resposta afirmativa e, assim, invalidando qualquer associação com a hipótese de expectativas racionais ou adaptativas. Argumenta-se então que a presença de incerteza impede qualquer tendência ao equilíbrio. Após a introdução da noção de estado das expectativas de curto prazo, afirma-se que essa conclusão é válida mesmo se considerarmos que os produtores geralmente seguem o comportamento convencional. Defendendo a visão de que a incerteza deve ser considerada como graduável, o artigo sustenta que as convenções reduzem, mas não eliminam a incerteza.
ISSN:0101-3157
1809-4538
DOI:10.1590/0101-31571999-1050