Abstract The objective of this chapter is to examine the ARCH family of volatility models and its use in risk analysis and measurement. An overview of unconditional and conditional volatility models is provided. The former ...

Within the environmental policy framework, one could distinguish two categories, both of which aim at the protection of the environment. The first category is based on the concept of reducing the use of non-renewable ...

This paper extends the empirical evidence on the forecasting accuracy of extrapolative methods. The robustness of the major conclusions of the M-Competition data is examined in the context of the telecommunications data ...

Greek private direct investments in Balkan countries carry a special weight because, on the one hand, the country of origin of the capital invested is a member of the European Union and, on the other, it is a neigh boring ...

The financial and economic crisis that began in 2007 is a clear example of how is globalisation connected to the instability of global financial markets. Our target is not to analyze the immediate and direct contributing ...

Greek foreign policy during the Interwar period was heavily affected by the legacy of the Asia Minor Disaster. After the signing of the Peace Treaty of Lausanne (24 July 1923), Greece’s strategic aims focused on ...

The economic crisis forced the Greek Government to implement a series of controversial fiscal consolidation policies, also known as Memoranda of Economic and Financial Policy (a.k.a. Memoranda), resulting in internal ...

The purpose of the research described in this paper is to first identify successful Greek SMEs that can be qualified as ‘hidden champions’ and second to uncover the factors that have contributed to their success. These ...

The present study examined job satisfaction within the hotel industries from the perspective of ambiguity, role conflict and job autonomy, as well as their interactions. Structurally, the analysis begins with the presentation ...

Greek private direct investments in Balkan countries carry a special weight because, on the one hand, the country of origin of the capital invested is a member of the European Union and, on the other, it is a neighboring ...

In this paper, we study the contribution of the geographical (both the regional and international) aspect of news releases, related to the Greek sovereign debt crisis. We investigate the impact of the Greek debt crisis via ...

“When we won 5.3% in the Municipality of Athens [in 2010], they said it was circumstantial. We told them that we are here to stay. And from Athens we will spread to all of Greece. When on May 6 [2012] we won 6.9 per ...

Forecasting as a scientific discipline has progressed a lot in the last 40 years, with Nobel prizes being awarded for seminal work in the field, most notably to Engle, Granger and Kahneman. Despite these advances, even ...

Unpredictability and uncertainty reigns over most of medicine. Should women be screened for mammography and men for prostate cancer? The answer is not obvious as a growing number of researchers and doctors assert that the ...

The purpose of this paper is to investigate the performance of various technical trading rules in the Athens Stock Market. We test two of the simplest and most popular trading rules- Moving Averages and MACD Indicator. We ...

High blood pressure (HBP) or hypertension (HTN) is one of the leading causes of cardiovascular (CV) morbidity and mortality throughout the world. Despite this fact, there is widespread agreement that the treatment of HBP, ...

The purpose of this article is to deal directly and explicitly with the issues and problems currently facing forecasting, planning and strategy and to discuss how the challenges of the 1980s can be realistically and ...

A novel visual multimedia content encryption method based on cellular automata (CA) is presented in this paper. The proposed algorithm is based on an attribute of the eXclusive-OR (XOR) logic gate, according to which, ...

This paper examines a major area of statistics: the application of time series analysis to forecasting, particularly as it applies to the areas of business and economics. This area is unusual in the social sciences in that ...

Little is known on the combined effect of interpersonal trust and power factors on the traits and skills of knowledge acquisition. A survey of 140 first line managers was conducted to investigate the relationship between ...