This paper examined the weak form of efficiency by using the random walk test and the day of the week effect at Istanbul Stock Exchange (ISE) during the period 4 January 1988 - 27 December 1996. The random walk model is rejected for all periods under consideration and test results provide an...

The purpose of this paper is to compare the forecast performance of alternative time series models, namely VAR in levels, stochastic seasonal models (SSM) and error correction models (ECM) at the Istanbul Stock Exchange (ISE). Considering the emerging market characteristic of the ISE, stock...

The systematic risk of IPO’s in the thinly traded Istanbul Stock Exchange (ISE) are estimated using Empirical Bayes Estimators (EBE). The sectors that the firms belong to, provide the priors. Comparisons are made with OLS estimators across different estimation and forecasting periods. Two...

Opinions and beliefs determine the evolution of social systems. This is of particular interest in finance, as the increasing complexity of financial systems is coupled with information overload. Opinion formation, therefore, is not always the result of optimal information processing. On the...

The objective of this study is to examine whether published investment advice generates higher returns for investors. We investigate the impact of security recommendations in the financial press on common stock prices in Istanbul Stock Exchange. Recommendations of Investor Ali column of the...

The systematic risk of IPO’s in the thinly traded Istanbul Stock Exchange (ISE) are estimated using Empirical Bayes Estimators (EBE). The sectors that the firms belong to, provide the priors. Comparisons are made with OLS estimators across different estimation and forecasting periods. Two...

This study develops three heuristics to measure financial optimism: financial expectation, a priori optimism, and a posteriori optimism. This paper finds that financial optimism has a significant positive effect on risk taking behaviour. Optimistic investors choose risky portfolios over...

The objective of this study is to examine whether published investment advice generates higher returns for investors. We investigate the impact of security recommendations in the financial press on common stock prices in Istanbul Stock Exchange. Recommendations of Investor Ali column of the...

On February 24, 2022, Russia invaded Ukraine. In this paper, we analyze the response of European and worldwide stock markets and a representative sample of commodities to this event and compare it against the recent Covid-19 pandemic and the not-too-distant 2008 global financial crisis. We...