A widely held belief in financial economics suggests that stock prices always adequately reflect all available information. Price movements away from fundamentals are assumed to occur only infrequently, if at all. „False“ prices are supposed to be corrected by the counter-actions of...

The FTSE/ASE-20 futures market, as the first organised Greek derivatives market, established in August 1999 and its operation rests with the Athens Derivatives Exchange (ADEX) and the Athens Derivatives Exchange Clearing House (ADECH). Cointegration tests are used and an error correction model...

An important literature has pointed out the coordination problems faced by the agents, in particular the financial one when they have to manage risk and their portfolio. If we follow Kaldor and its definition of speculation, then we could point out that in this case agents are short term...

This paper explores the implications of investors’ everyday mild feelings for aggregate asset returns. To this end, it introduces a novel class of state dependent preferences - happiness maintenance preferences - into the standard Mehra and Prescott (1985) economy by allowing investors’...

This paper presents a simple discrete time model for valuing real options. A short proof of optimal exercise rules for the standard problems in the real options theory is given in the binomial and trinomial models, and more generally, when the underlying uncertainty is modelled as a random walk...

We explicitly solve the pricing problem for perpetual American puts and calls, and provide an efficient semi-explicit pricing procedure for options with finite time horizon. Contrary to the standard approach, which uses the price process as a primitive, we model the price process as the expected...

From the model of Hobijn and Jovanovic (2001), we modelize a technological shock with uncertainty. We assume that this technological shock appears in the shape of new firms. Only a part of these firms will be productive. Uncertainty relates to the identification of the viable firms. This...

The need to develop securities market has, following the recent international financial crises, increasingly attracted the attention of national and international policy makers. Never before have developed and developing countries shared such a strong interest in ensuring the stable growth of...

An economy in which deposit-taking banks of a Diamond/Dybvig style and an asset market coexist is modelled. Firstly, within this framework we characterize distinct financial systems depending on the fraction of households with direct investment opportunities that are less efficient than those...

This paper studies how the trade size and the historical sequence of trades affect bid-ask spreads, investors’ trading strategies, and the market maker’s learning process in a multi-period economy. First, we show that there is a nonzero cut-off size below which informed traders never buy or...