ABSTRACT
According to the post-Keynesian approach, uncertainty is inherent to the loci in which investors decide the portfolio allocation of their wealth (or the wealth they manage) in a monetary economy. In financial assets’ markets, to deal with uncertainty, agents use instruments that evolved with time and encompass two elements of the decision-making process: (i) which premises will be considered to make a decision, the focus of Keynes’ General Theory; (ii) the sequel between the premises and the very decision, the focus of Keynes’ Treatise on Probability. The aim of this paper is twofold. The first one is to summarize the contribution of Fernando Cardim de Carvalho to the understanding of the decision-making under uncertainty. The second one is to analyse the decision-making instruments used in contempo-raneous financial assets’ markets in light of his contribution that is especially suitable for this goal due to his acquaintance with the Treatise.
KEYWORDS:
Keynesian uncertainty; decision making; financial asset’s markets; conventions; speculation