Πλοήγηση ανά Συγγραφέα "Karagiorgos, Theofanis"
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Τεκμήριο Evaluation of the effectiveness of internal audit in Greek Hotel Business(2011) Karagiorgos, Theofanis; Giovanis, Nikolaos; Drogalas, GeorgeThere is currently considerable interest in the topic of internal audit and its contribution to exact management of any business economic resources. Within this framework of extremely fluid business environment, the research tested the hypothesis about the role of internal auditing for the business success. The main purpose of the present paper is not only to examine the issue in a theoretical level, but also to present empirical evidence for the interaction between components of internal control system and performance of internal auditing in Greek hotel business. According to up-to-date theoretical and empirical literature, the results point out that all components of internal audit are vital for the effectiveness of internal audit and consequently in the business survival and success.Τεκμήριο Internal control system and management information systems(2008) Karagiorgos, Theofanis; Chatzispirou, Ioanna; Drogalas, GeorgeRapid changes in information technology and managerial practices in many organizations were forcing efficient internal audit as a tool for reducing the total risk. Simultaneously, information has become one of the most valuable assets of the corporation, and must be protected with care and concern, because business continuity and success are heavily dependent upon the integrity and continued availability of critical information. Within this framework of extremely fluid business environment, the objective of this research is to explore the existence and adequacy of internal control system in management information systems. The results point out that internal auditors pay attention to “traditional” risks that are associated with information systems’ security, while they should take into consideration risks and controls associated with the other units, in order to make information system audit’s function more effective, improving thereby the internal audit’s operation.Τεκμήριο International M&As of greek listed firms at south-east Europe: effects on their accounting performance(2011) Pazarskis, Michail; Alexandrakis, Alexandros; Karagiorgos, TheofanisThis study examines the international mergers and acquisitions (M&As) of Greek firms in South-Eastern European countries. The main objective of this paper is to evaluate the post-merger performance of Greek listed firms in the Athens Stock Exchange that executed as acquirers one merger or acquisition in a five-year-period (from 1998 to 2002). For the purpose of the study, a set of twenty ratios is employed, in order to measure firms’ post-merger performance and to compare pre- and post-merger accounting data for three years before and after the M&As events. The selected countries of South-Eastern Europe for the research sample are the three countries with the larger Greek investments in that period: Romania, Bulgaria and Albania. The results revealed that the international M&As activities of the Greek listed sample firms in the selected countries of this research have not lead them to enhanced postmerger performance, but, in general, to an accounting performance deterioration that also have a negative impact on three profitability examined ratios. Also, the most interesting that is revealed is that the worsening of the two years after the M&As is greater in the next period (three years after the examined event) and there is no negative or positive ratio significant change in the first year after the international M&As. Last, the study further analyses these ratio results with the method of payment of the acquiring firms: cash and stock exchange (with minor cash amounts); the conclusion for this is that the method of payment has no impact on the post-merger accounting performance of the examined firms.Τεκμήριο The post-merger accounting performance of greek listed firms in south-eastern european countries(2011-09) Pazarskis, Michail; Alexandrakis, Alexandros; Karagiorgos, TheofanisThis study examines the international mergers and acquisitions (M&As) of Greek firms in South-Eastern European countries. The main objective of this paper is to evaluate the post-merger performance of Greek listed firms in the Athens Stock Exchange that executed as acquirers one merger or acquisition in a five-year-period (from 1998 to 2002). For the purpose of the study, a set of twenty ratios is employed, in order to measure firms’ post-merger performance and to compare pre- and post-merger accounting data for three years before and after the M&As events. The selected countries of South-Eastern Europe for the research sample are the three countries with the larger Greek investments in that period: Romania, Bulgaria and Albania. The results revealed that the international M&As activities of the Greek listed sample firms in the selected countries of this research have not lead them to enhanced post-merger performance, but, in general, to an accounting performance deterioration that also have a negative impact on three profitability examined ratios. Also, the most interesting that is revealed is that the worsening of the two years after the M&As is greater in the next period (three years after the examined event) and there is no negative or positive ratio significant change in the first year after the international M&As. Last, the study further analyses these ratio results with the method of payment of the acquiring firms: cash and stock exchange (with minor cash amounts); the conclusion for this is that the method of payment has no impact on the post-merger accounting performance of the examined firms.