Search results
1 – 10 of 23Christos Kollias, Theodosia Leventi and Petros Messis
Social change and modernization theories postulate that as countries grow they gradually move toward a condition of similarity in various spheres exhibiting similar economic and…
Abstract
Purpose
Social change and modernization theories postulate that as countries grow they gradually move toward a condition of similarity in various spheres exhibiting similar economic and social traits. The purpose of this paper is to investigate whether a process of convergence in terms of criminality levels is present in the case of European countries.
Design/methodology/approach
The research question at hand is tackled through conventional s and ß-convergence methodologies and a battery of unit root tests in the case of 16 European countries over the period 1972-2012.
Findings
The findings reported, herein, are quite uniform irrespective of the empirical methodology employed to investigate the issue at hand. The result points to a process of convergence in terms of crime rates. However, this convergence process, although present and statistically traceable, is a rather gradual one as this is depicted both by the value of the β-coefficient as well as by the trend of the coefficient of variation.
Originality/value
Most of the studies in this strand of the literature focus on investigating the association between economic conditions such as unemployment and crime or on the effectiveness of crime thwarting policies. To the best of the knowledge, this is the first paper that addresses the issue of convergence in terms of crime rates in the case of European countries.
Details
Keywords
Petros Messis and Achilleas Zapranis
The purpose of this paper is to examine the predictive ability of different well-known models for capturing time variation in betas against a novel approach where the beta…
Abstract
Purpose
The purpose of this paper is to examine the predictive ability of different well-known models for capturing time variation in betas against a novel approach where the beta coefficient is treated as a function of market return.
Design/methodology/approach
Different GARCH models, the Kalman filter algorithm and the Schwert and Seguin model are used against our novel approach. The mean square error, the mean absolute error and the Diebold and Mariano test statistic constitute the measures of forecast accuracy. All models are tested over nine consecutive years and three different samples.
Findings
The results show substantial differences in predictive accuracy among the samples. The new approach of modelling the systematic risk overwhelms the rest of the models in longer samples. In the smallest sample, the Kalman filter random walk model prevails. The examination of parameters between two groups of stocks with best and worst accuracy results depicts significant variations. For these stocks, the iid assumption of return is rejected and large differences exist on diagnostic tests.
Originality/value
This study contributes to the literature with different ways. First, it examines the predictive accuracy of betas with different well-known models and introduces a novel approach. Second, after constructing betas from the estimated models’ parameters, they are used for out-of-sample instead of in-sample forecasts over nine consecutive years and three different samples. Third, a more closely examination of the models’ parameters could signal at an early stage the candidate models with the expected lowest forecasting errors. Finally, the study carries out some diagnostic tests for examining whether the existence of iid normal returns is accompanied by better performance.
Details
Keywords
Petros Messis and Achilleas Zapranis
– This study aims to investigate the existence of herding in the Athens Stock Exchange over the 1995-2010 period and examine its effects on market volatility.
Abstract
Purpose
This study aims to investigate the existence of herding in the Athens Stock Exchange over the 1995-2010 period and examine its effects on market volatility.
Design/methodology/approach
Herding is examined over portfolios formed on beta and size of the selected stocks. The detection of herding has been done using the state space model of Hwang and Salmon (2004). Four volatility measures are employed.
Findings
The findings depict the presence of herding over two different periods of time. Large differences are observed among the portfolios regarding the herding periods. The results confirm a linear effect of herding on all volatility measures considered. Stocks exhibiting higher levels of herding or adverse herding will also present higher volatility, and from this point of view, herding can be regarded as an additional risk factor.
Originality/value
The fact that herding is considered to be an additional risk factor, can lead market participants and investors to a better understanding of market risk, asset pricing and asset allocation.
Details
Keywords
Conservative, continuity candidate Federico Gutierrez still appears to be Petro’s closest challenger. However, a late surge by populist Rodolfo Hernandez has shocked the…
Details
DOI: 10.1108/OXAN-DB270492
ISSN: 2633-304X
Keywords
Geographic
Topical
Ukraine's presidential election.
The scale of Zelensky's success is visible in his capture of all four macro-regions, and all but one province (Lviv). After the acrimony of campaigning, outgoing President Petro…
Details
DOI: 10.1108/OXAN-DB243443
ISSN: 2633-304X
Keywords
Geographic
Topical
Hayley Lockerbie and Dorothy Williams
The purpose of this paper is to develop and test a theoretical framework for understanding information literacy (IL) within the context of a small business workplace environment…
Abstract
Purpose
The purpose of this paper is to develop and test a theoretical framework for understanding information literacy (IL) within the context of a small business workplace environment. The theoretical framework developed related IL competencies to competencies for success as described by the psychologist Howard Gardner in his book “Five Minds for the Future”.
Design/methodology/approach
A theoretical framework was developed using the CILIP Seven Pillars for IL and Howard Gardner’s Five Minds theory. Indicative connections between the Seven Pillars and Five Minds were identified by the researchers. The framework was tested through analysis of transcripts from qualitative interviews conducted with four small business owners.
Findings
Connections were found between the Seven Pillars and the Five Minds; some which had been projected by the researchers and others which had not. The theoretical framework aided description of and understanding of IL within small business workplace environments.
Research limitations/implications
A small sample size limits the generalizability of the findings, and further testing of the framework is required. The findings do, however, suggest that the context in which IL manifests remains significant and should be further examined in wider and divergent contexts.
Originality/value
Using theory from psychology paired with a well-known theory of IL to develop a new theoretical framework is novel. The framework developed offers a new way of understanding the role of IL within the context of small business workplaces.
Details
Keywords
Lorraine Uhlaner Hendrickson and Dale B. Tuttle
Defines environmental entrepreneurship as entrepreneurial activity that benefits the environment. Building on this definition, presents two related conceptual schema that may be…
Abstract
Defines environmental entrepreneurship as entrepreneurial activity that benefits the environment. Building on this definition, presents two related conceptual schema that may be used to study environmental enterprises. Presents an environmental classification scheme that can be used to categorize the mission or market strategy for different environmental enterprises. Applies the Dynamic System Planning Model, an open systems model of organization effectiveness, to explore the ways in which an environmental market strategy focus may impact other management issues. Presents qualitative data gathered from interviews and case materials from four small environmental enterprises. The environmental focus influenced the management approach to resource acquisition in three of the four companies. Environmental entrepreneurs also shared the common characteristic of taking a proactive stance relative to government sanctions and incentives boosting their respective industries. Points out a few practical implications and suggestions for future research based on the findings. One of these implications relates to the basic premiss of environmental entrepreneurship: Is it healthy for a business to focus the entire business on the environmental sector? Suggests not, recommending instead that a company may reduce its risk and thus potentially prolong its existence by diversifying into both environmental and non‐environmental industry segments, as long as both are linked to the company’s core competences. Urges further study of corporate strategic issues of this type. Recommends directions for future research.
Details
Keywords
W. Mark Fruin and Masao Nakamura
This paper aims to present a general review of the circumstances of America and Japan's rapid corporate, economic and industrial development in the twentieth century.
Abstract
Purpose
This paper aims to present a general review of the circumstances of America and Japan's rapid corporate, economic and industrial development in the twentieth century.
Design/methodology/approach
The approach considered and evaluated how the circumstances of America and Japan's growth might apply to China and India, two of the fastest growing economies of the twenty‐first century.
Findings
The findings suggest that both America and Japan might be considered exceptional cases and, as such, neither one might be regarded as a good model for emulation. However, the circumstances of Japan's rapid growth appear closer to those of contemporary China and India and on that basis the authors suggest that Japan might be a better model for emulation.
Originality/value
The American model is too novel and unlikely to be imitated, replicated or repeated whereas Japan's high population density, agrarian origins, state assisted and administered development, adaptation and hybridization of local and imported methods and technologies, kinship, pseudo‐kinship and locality based business groupings, and rapid, come‐from‐behind charge toward industrialization, urbanization and international emergence, all suggest that Japan offers a more relevant and useful development model.
Details
Keywords
Zelensky won in 20 out of 25 regions including the capital Kyiv, Poroshenko in just two, third-placed Yulia Tymoshenko in one and Yury Boyko in two (with smaller populations).