Purpose: The optimization of investment portfolios is a topic of major importance in financial decision making, with many relevant models available in the relevant literature. The purpose of this paper is to perform a thorough comparative assessment of different bi-objective models as well as...

The main purpose of the study is to highlight the new service development as a key determinant of diversification strategy in the hospitality industry. Successful new services strengthen the hotels' innovation orientation, constitute the basis for the future competitiveness, growth and survival,...

Ratings issued by credit rating agencies (CRAs) play an important role in the global financial environment. Among other issues, past studies have explored the potential for predicting these ratings using a variety of explanatory factors and modeling approaches. This paper describes a...

Purpose -The purpose of this paper is to examine the efficiency and productivity of a Greek bank's branches. Design/methodology/approach -The sample consists of 458 branches of a Greek commercial bank, operating in 13 regions of Greece over the period 2002-2005, a total of 1,795 observations....

Financial decision making is involved with a plethora of important issues for individual and institutional investors, managers of firms and organizations, as well as policy makers. The finance theory has adopted the wealth maximization principle, focusing on normative and descriptive approaches...

Recent research on robust decision aiding has focused on identifying a range of recommendations from preferential information and the selection of representative models compatible with preferential constraints. This study presents an experimental analysis on the relationship between the results...

Credit rating models are widely used by banking institutions to assess the creditworthiness of credit applicants and to estimate the probability of default. Several pattern classification algorithms are used for the development of such models. In contrast to other pattern classification tasks,...

The assessment of financial risks is a problem of major interest for corporate entities (organizations, financial institutions, firms, etc.). The vulnerable economic and financial environments necessitate the development of operational approaches to measure and control financial risks. Most of...