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11 – 20 of 286Gangyan Xu, Chun-Hsien Chen, Fan Li and Xuan Qiu
Considering the varied and dynamic workload of vessel traffic service (VTS) operators, design an adaptive rotating shift solution to prevent them from getting tired while ensuring…
Abstract
Purpose
Considering the varied and dynamic workload of vessel traffic service (VTS) operators, design an adaptive rotating shift solution to prevent them from getting tired while ensuring continuous high-quality services and finally guarantee a benign maritime traffic environment.
Design/methodology/approach
The problem of rotating shift in VTS and its influencing factors are analyzed first, then the framework of automatic identification system (AIS) data analytics is proposed, as well as the data model to extract spatial–temporal information. Besides, K-means-based anomaly detection method is adjusted to generate anomaly-free data, with which the traffic trend analysis and prediction are made. Based on this knowledge, strategies and methods for adaptive rotating shift design are worked out.
Findings
In VTS, vessel number and speed are identified as two most crucial factors influencing operators' workload. Based on the two factors, the proposed data model is verified to be effective on reducing data size and improving data processing efficiency. Besides, the K-means-based anomaly detection method could provide stable results, and the work shift pattern planning algorithm could efficiently generate acceptable solutions based on maritime traffic information.
Originality/value
This is a pioneer work on utilizing maritime traffic data to facilitate the operation management in VTS, which provides a new direction to improve their daily management. Besides, a systematic data-driven solution for adaptive rotating shift is proposed, including knowledge discovery method and decision-making algorithm for adaptive rotating shift design. The technical framework is flexible and can be extended for managing other activities in VTS or adapted in diverse fields.
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Hina Munir, Cai Jianfeng and Sidra Ramzan
The purpose of this paper is to extend the existing literature on entrepreneurial intentions (EIs) by employing the integrated model of personality traits and the theory of…
Abstract
Purpose
The purpose of this paper is to extend the existing literature on entrepreneurial intentions (EIs) by employing the integrated model of personality traits and the theory of planned behavior (TPB). It further examines the mediating role of TPB’s dimensions between personality traits and EIs of final-year university students in two diverse economies: China and Pakistan.
Design/methodology/approach
The paper uses a survey method for data collection, administered both in electronic and paper form. The authors use structural equation modeling and the partial least square (PLS) method on a sample of 1,016 students and present PLS path modeling, mediation analysis and multigroup analysis.
Findings
Results reveal several differences regarding personality traits and TPB on EIs across the two countries. The impact of TPB was positive and significant in both countries; however, TPB demonstrated more explaining power in China’s student sample. Using three personality traits (risk-taking propensity, proactive personality and internal locus of control) as antecedents to TPB, the results reveal a stronger influence of personality traits among Chinese students. The mediation of three dimensions of TPB also revealed differences between country samples.
Originality/value
This is the first study of its kind to compare and contrast the differences between EIs in terms of personality and the determinants of planned behavior among university students in two diverse economies. The integrated model is original, supports both TPB and personality factors and provides a valuable perspective through its findings on two culturally diverse Asian countries. By applying the model in two different cultures, this study distinguishes the results for the two economies from those conducted in other economies.
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Dinis Daniel Santos and Paulo Gama
Are firms able to time the market? The purpose of this paper is to focus on the study of own stock trading, emphasizing both repurchase and resell operations on the open market as…
Abstract
Purpose
Are firms able to time the market? The purpose of this paper is to focus on the study of own stock trading, emphasizing both repurchase and resell operations on the open market as well as over the counter.
Design/methodology/approach
The authors use data on 37,997 own stock transactions from 2005 to 2015 of Euronext Lisbon listed firms. Following Dittmar and Field (2015), this paper uses relative transaction prices to ascertain the relative performance of own stock transactions, in the open market and over the counter.
Findings
Results show that firms can time both repurchases as well as resales. Firms repurchase (resell) at lower (higher) prices than those prevailing in the market. Moreover, market-timing ability proves to be higher after the bailout period and to be influenced by the own stock trading frequency. Trading on the open market allows for increased timing ability for own stock repurchasing and reselling activity. Finally, results show seasonal effects both in repurchase and resale performance. Also, more efficient but less valuable firms are more likely to be successful in timing the market.
Originality/value
The authors study both the repurchasing and the reselling activity of the same set of firms, of already issued stock, using high-frequency (daily) data. In addition, the authors study own stock trading both in the open market and OTC, and also study the impact of a major economic shift on the firms’ ability to time the market.
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This paper aims to further our understanding of the career success of the self-employed and how it is influenced by their psychological capital (PC), persistence (P) and…
Abstract
Purpose
This paper aims to further our understanding of the career success of the self-employed and how it is influenced by their psychological capital (PC), persistence (P) and risk-taking propensity (RTP). This study explores the direct effect of PC on success and investigates the potential mediation of P and RTP on the PC-success association.
Design/methodology/approach
In this quantitative study, questionnaires were administered to measure PC, P, risk-taking and success. Data was collected using purposive sampling with an expert judgment that represented a cross-section of the entrepreneurial population in three Malaysian northern states. Structural equation modeling by means of partial least square was used for hypotheses testing of the 252 usable responses.
Findings
Statistically significant and positive relationships were found between PC and success, whereas P and risk-taking were found to mediate the PC-success association. The mediation effects of P and risk-taking were more pronounced when entrepreneurial self-efficacy and optimism were included in the PC as a second-order construct than individually separate constructs.
Practical implications
The importance of the transitional progression of self-efficacy and optimism to success through P and risk-taking were verified and so can be used for nurturing efforts that activate positive self-efficacy and optimism for entrepreneurial career success. The lower mediation effect of risk-taking on the optimism-success association denotes caution when managing risk.
Originality/value
There is a relative dearth of supporting research that has not examined the inter-relationships between PC and career success of entrepreneurs. Exploring the intervening effect of P and risk-taking on that relationship is unprecedented.
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The study assesses impact of individual cultural values on investment choices (aggressive or conservative), of 450 investors with behavioural biases and risk propensity in serial…
Abstract
Purpose
The study assesses impact of individual cultural values on investment choices (aggressive or conservative), of 450 investors with behavioural biases and risk propensity in serial as mediators in the relationship.
Design/methodology/approach
The study used serial mediation analysis using Hayes model 6 for creating six models.
Findings
Findings of the study indicated that individualism traits are inclined to aggressive investment choices due to presence of overconfidence biases. Uncertainty avoidance and longtermism traits of investors resulted in aggressive investment choices due to presence of herd mentality bias. The moderating impact of past investing experiences was found significant.
Originality/value
The study indicates the importance of cultural values and past investing experiences of investors that may develop biases to assess investment choices and decisions of investors.
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Nour Mohammad and Yasmin Farjana
The purpose of this chapter is to explain the concept of right to participation from the viewpoint of development and tries to establish nexus between participation and right to…
Abstract
The purpose of this chapter is to explain the concept of right to participation from the viewpoint of development and tries to establish nexus between participation and right to development in context of human rights-based approach and try to establish the co-existence between the two terminologies. The term participation is closely associated with the traditional democratic system; under this system people are entitled to participate in governance system directly or indirectly, which can be dated back from the ancient Greek civilization (Faruque, 2002a). In a democratic system, participation is people central and can be treated as “an valuable module of any system that considers itself a democracy” (Kweit & Kweit, 1981) “corner stone of democracy” (Sherry, 1969) or “instrument of legitimacy of government” (Falk & Strauss, 2000). Participation means a right by which one can exercise his/her function in the society and express his/her view or behavior toward the political system and governance. So the notion of participation is “effective in mobilizing and natural resources and combating inequalities, discrimination, poverty and exclusion” (UN.DOC, E/CN.4/1990/9/Rev. 1, 1990, Ch. 7). However, the concept of participation “should be viewed both as a means to an end and as an end itself” (UN.DOC, E/CN.4/1990/9/Rev. 1, 1990, Ch. 7, para 150). In environmental level, public participation has played a vital role in decision-making for measuring the protection of environment. Public participation in decision-making that affects the environment is recognized in the Aarhus Convention (Convention on Access to Information, 2001).
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Jungmu Kim, Yuen Jung Park and Thuy Thi Thu Truong
The authors examined whether stocks with higher left-tail risk measures earn higher or lower futures returns. Specifically, the authors estimate the cross-sectional principal…
Abstract
The authors examined whether stocks with higher left-tail risk measures earn higher or lower futures returns. Specifically, the authors estimate the cross-sectional principal component of a battery of left-tail risk measures and analyze future returns on stocks with high principal component values. In contrast to finance theories on the risk–return trade-off relationship, the study results show that high left-tail risk stocks have lower future returns. This finding is robust to various left-tail risk measures and controls for other risk factors. Moreover, the negative relationship between the left-tail risk and returns is more pronounced for stocks that are actively traded by retail investors. This empirical result is consistent with behavioral theory that when investors make decisions based on experience, they tend to underweight the likelihood of rare events.
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Dinis Daniel Santos and Paulo Gama
This paper aims to study individual managers’ market timing capabilities while trading (either buying or selling) stock from their portfolios, as well as the impact of gender…
Abstract
Purpose
This paper aims to study individual managers’ market timing capabilities while trading (either buying or selling) stock from their portfolios, as well as the impact of gender, seniority and trading frequency on their market timing performance.
Design/methodology/approach
This study uses a relative transaction price approach introduced by Dittmar and Field (2015) on 837 aggregated trades made by managers from their portfolios between 2010 and 2015. These were taken from publicly disclosed information through the Portuguese regulator. Furthermore, this study uses a median regression-based method to infer the authors’ conclusions.
Findings
The authors find that insiders buy (sell) at a relatively lower (higher) price when compared to other traders. This evidence shows that insiders have market timing capabilities. Moreover, this paper shows that contrarily to gender, both seniority and frequency help explain market timing performance and that insiders’ trades made over-the-counter (OTC) generally overperform the ones made on the open market (OM). Finally, this study finds a significant crisis-related influence on insiders’ market timing performance.
Originality/value
This study contributes to the literature by studying insider trading at the portfolio level, by analyzing the impact of personal characteristics of insiders (including gender, tenure and eagerness), focusing both on studying the buying and selling behavior across both OMs and OTC and analyzing firsthand the impact of a macroeconomic shift on insider trading performance.
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Maegan Hendow, Alina Cibea and Albert Kraler
This paper aims to examine the primary fundamental rights concerns related to biometrics and their use in automated border controls (ABCs), as well as how these issues converge in…
Abstract
Purpose
This paper aims to examine the primary fundamental rights concerns related to biometrics and their use in automated border controls (ABCs), as well as how these issues converge in the European Commission’s Smart Borders proposal.
Design/methodology/approach
This paper draws on extensive background research and qualitative in-depth interviews conducted in 2013 for the European Union (EU) FP-7 project “FastPass – A harmonized, modular reference system for all European automatic border crossing points”.
Findings
The Smart Borders proposal not only compounds the individual concerns related to the use of biometrics in border controls and automatisation thereof, but also has serious issues of its own, premier among which is the imposition of a two-tier border control system.
Social implications
The paper is a catalyst for open debate on the fundamental questions of how we got to this point and where do we want to go. It questions the process by which the increased use of IT in border controls has become the norm and policy trend in Europe, and discusses where the limits could be drawn from a fundamental rights perspective. In particular, it warns against the institutionalisation of a two-tier border control system among third-country nationals.
Originality/value
Little attention is given to the fundamental rights concerns raised for EU and non-EU citizens as related to biometrics and their use in ABCs, and how these issues are reproduced in the Smart Borders proposal. The paper fills this gap by taking a bottom-up approach: examining the implications of individual elements of the proposal to see their impact on the broader policy.
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