Terrorism, political system instability and currency rate fluctuations are the three most evident issues of 21st century. In this study, comparative analysis is performed to check the impact of all these issues on PSX Volatility. EGARCH (1,1) approach is used on four different kinds of data collected from 1st January 2000 to 31st December 2015. Terrorist events, FX return fluctuations with rest...

Event counting is significant when it allows us to discover and represent implicit knowledge. We realize that a particular event happens somewhere not just by mere chance, it is unlikely to be what we call as accidental event. E.g. the number of violent attacks and terrorist acts can give the measure of the safety for a given country and can help us to predict where and/or when similar events a...

a r t i c l e i n f o Keywords: Terrorist Group processes Case study Involvement vs. events This paper offers a critical review of the role of group processes in terrorist behavior. It draws on a fundamental distinction between terrorist 'involvement' and terrorist 'events' to explore what group phenomena might contribute to our understanding of actual terrorist behavior, as opposed to the cont...

in u.s. public opinion before the 11 september have defined terrorism is a unpresidented events in thire countries. but true is since two centuries ago until now, especially after secound world war, united states extremly has experienced domestic and foreign terrorist groups and their attacks. wathever it wasn’t as well as scale of the other west countries like spain, italy and britain has incu...

The Semantic Web could be a crucial tool to terrorism researchers, but to achieve this potential an accessible and flexible but comprehensive ontology needs to be designed to describe terrorist activity. Terrorist events are complicated phenomena that involve a large variety of situations and relationships. This paper addresses some of the issues the authors have encountered trying to build suc...

We describe a quantitative methodology to characterize the vulnerability of U.S. urban centers to terrorist attack, using a place-based vulnerability index and a database of terrorist incidents and related human casualties. Via generalized linear statistical models, we study the relationships between vulnerability and terrorist events, and find that our place-based vulnerability metric signific...

INTRODUCTION While several population-based studies have documented behavioral health disturbances following terrorist attacks, a number of mental health service utilization analyses present conflicting conclusions. PURPOSE The purpose of this study was to determine if mental health service utilization increased following a terrorist attack by assessing changes in psychoactive drug prescripti...