Terror Attacks, Foreign Exchange Markets and Class Dynamics

This paper examines the effect of major terror attacks of the twenty-first century on the forex market. The “event study” methodology is used to assess whether, following a terror attack, the currency of the country attacked experienced a negative effect. It also examines whether this effect is permanent or transitory and whether there are differences between recent and earlier attacks. Results suggest that earlier events cause substantial negative “event-day” returns for the specific currency, which seem to persist for some days. This is particularly evident in pairs involving the currency of the country attacked and “safe heaven” currencies (e.g. Yen, Swiss Franc). The paper also documents that terror attacks that occurred recently appear to have very little influence on the currency pairs examined, thus suggesting that, over time, market participants have learnt to better assess such events. Given our findings, and particularly the one suggesting that the effects of terror attacks on the foreign exchange market, and hence the economy, are transitory, it would appear that class dynamics are not likely to be affected by them; forex markets appear to be particularly efficient in dealing with such events, absorbing short-term shocks and continuing to function effectively, thus maintaining economic stability

An investigation of cointegration and casualty relationships between the PIIGS’ stock markets

The aim of this paper is to investigate the relationship of price changes in the southern European E.U. member states through their stock markets and especially among the exchange markets of Portugal, Italy, Ireland, Greece and Spain, known also as the PIIGS countries. More specifically, it is examined whether cointegration and causality relationships exists among the PIIGS’ Stock Markets while by testing these relationships the existence of the Efficient Market Hypothesis (EMH) among these stock markets is also tested. In case of cointegration relationships between these markets it is proved that possible advantages by internationalizing portfolio diversification are limited and further attention must be given for the selection of an internationalized optimal portfolio. It is also wealth mentioning that since 2012 Europe faces a serious economic crisis which is deeper in the member states of the South, so even further attention must be given to the construction of optimal portfolios.peer-reviewe