bluuebunny/crossref_metadata_2025_split huggingface dataset:
Does realized volatility provide additional information?
Authors: Zhang Jianfeng , Hu Wenxiu 
Published: February 2013

Purpose
– The purpose of this paper is to examine whether realized volatility can provide additional information on the volatility process to the GARCH and EGARCH model, based on the data of Chinese stock market.

Design/methodology/approach
– The realized volatility is defined as the squared overnight return plus the close to open squared return of the period between the morning and afternoon session, to plus the sum of the squared f-minute returns between the trading hours during the relevant trading day. The methodology is a GARCH (EGARCH) model with added explanation variables in the variance equation. The estimation methodology is exact maximum likelihood estimation, using the BHHH algorithms for optimization.

Findings
– There are some stocks for which realized volatility measures add information in the volatility process, but there are still quite a number of stocks for which they do not contain any additional information. The 30 minutes realized volatility measures outperform measures constructed on other time intervals. The firm size, turnover rate, and amplitude also partially explain the difference in realized volatility
'
s explanatory power across firms.

Research limitations/implications
– When analyzing the factors determining the role of realized volatility, as the difficulty of getting the data, ownership structure and ultimately ownerships are not taken into account, except for the turnover ratio, amplitude and size.

Originality/value
– This study extends firstly this line of inquiry of realized volatility into the emerging Chinese stock market. Due to the unique institutional setting in China, the results of this study have played an important role on pricing warrant for domestic investors in the Chinese market.
MBNQA criteria used in the GCC countries
Authors: Jaeger Martin , Adair Desmond , Al‐Qudah Sondus 
Published: February 2013

PurposeQuality criteria of The Malcolm Baldrige National Quality Award (MBNQA) have been used as a standard for organisational self‐assessment and benchmarking. The threefold purpose of this paper is: to analyse the individual weights of the MBNQA criteria for organisations of the construction and the manufacturing industry within the GCC (Gulf Cooperation Council) countries in order to create a basis for self‐assessment and benchmarking; to identify differences of criteria importance between the construction and the manufacturing industry (external alignment) in order to identify challenging areas on TQM when two organisations from the respective industries collaborate; and to compare the perspectives of project managers with those of quality management representatives (internal alignment) in order to identify challenging areas on an organisation's TQM caused by not aligned or contradicting perspectives.Design/methodology/approachQuestionnaire based in‐depth interviews of GCC project managers and quality management representatives were analysed using a fuzzy analytical hierarchy process (AHP) to calculate the weights and subsequent ranking of seven quality criteria.FindingsWhen compared to the original weights of the MBNQA criteria, the “results” criterion was found to be ranked the same. However, clear differences were identified regarding the criteria “leadership” and “measurement/analysis”. The differences between the two analysed industries were not significant, whereas project managers and quality management representatives have clearly differing views on all seven criteria.Originality/valueFirst, the analysed ranking of MBNQA quality criteria in the GCC countries gives organisations of the construction and the manufacturing industry a benchmark for comparison with their ranking of the MBNQA criteria. Second, clients may assume a common and hence strong basis for TQM when organisations belonging to the construction industry collaborate with organisations belonging to the manufacturing industry. Third, the organisations’ internal communication between project managers and quality management representatives needs to be improved in order to pursue common TQM goals effectively.
Incongruent quality management perceptions between Malaysian hotel managers and employees
Authors: Sumarjan Norzuwana , Arendt Susan W. , Shelley Mack 
Published: February 2013

PurposeUsing the Malcolm Baldrige National Quality Award (MBNQA) criteria, the purpose of this study is to compare perceptions of Malaysian hotel quality managers (HQMs) and employees on leadership and workforce practices.Design/methodology/approachA mixed methods approach was used. Questionnaires were distributed to 35 HQMs and 576 employees of three‐, four‐, and five‐star hotels. Interviews were conducted with HQMs. Descriptive statistics, t‐test, and analysis of variance were used to analyze the data. All interviews were transcribed, hand coded, and analyzed for themes.FindingsCompared to hotel employees, HQMs had higher scores for all leadership and workforce items. Comparing managers’ perceptions revealed a statistically significant difference between three‐ and four‐star with five‐star hotels on developing explicit quality policies and measurable objectives. For employees, there were statistically significant differences for most of the questionnaire items between three‐ and four‐star with five‐star hotels. HQMs identified inefficient communication systems and failure to develop explicit quality policies and objectives as main reasons for perception incongruences between employees and managers.Research limitations/implicationsTwo of the seven MBNQA criteria were used in this study; future research utilizing the other five criteria may be beneficial.Practical implicationsThis study provides hoteliers with quality practice perception differences between HQMs and employees in different star‐rated hotels. Knowing these differences should compel hoteliers to review their leadership and workforce practices, identify reasons for discrepancies, and attempt to minimize the gap.Originality/valueNo known studies in Malaysia, investigating this issue, have been conducted using a mixed methods approach. Additionally, this study provides empirical findings on quality practices from manager and employee perspectives.
Scanning for profitable (international) growth
Authors: Sleuwaegen Leo 
Published: February 2013

PurposeThe purpose of this paper is to develop a new method that allows corporate strategists to scan for profitable growth opportunities by extending the firm's product offering to new (foreign) markets.Design/methodology/approachThe methodology consists of developing and applying a new conceptual framework – MATCH – which assesses the potential value creation in relation to the business model adaptations that need to be made to enter a new market.FindingsThe paper shows that traditional methods of calculating the attractiveness of new markets may be misleading if not all elements of the business model are aligned with the contextual conditions (institutional, economic, social.) prevailing in the new market.Research limitations/implicationsThe method is illustrated for entering new foreign markets but lends itself to wider applications in the area of product diversification.Practical implicationsWithout asking for extensive data collection, the method yields practical insights about the attractiveness of entering new markets and business model adaptations that need to be made.Originality/valueThe MATCH framework is an original and practical approach that builds upon and extends essential insights originating from the related diversification literature.
Towards the consolidation of climate change strategies in organizations
Authors: María González‐González José , Zamora‐Ramírez Constancio 
Published: February 2013

PurposeThe purpose of this paper is to increase the knowledge about the strategies and actions that organisations are implementing to control and reduce their greenhouse gas emissions, as well as to identify and know the influence of the factors that can contribute to the consolidation of an organisational behaviour that is effective in the fight against climate change.Design/methodology/approachThe paper presents a case study conducted in Heineken Spain, which is primarily engaged in manufacturing and distributing beer, and some of its facilities are covered by the European Union – Emissions Trading System regulation. The results of this case study are analysed and interpreted according to institutional theory.FindingsThe paper illustrates the strategies developed by Heineken Spain in order to control and reduce their emissions and identifies these factors that are influencing on the consolidation of an effective practice in the fight against climate change: top management support, communication, training, formalization, technical/rational, internal supervision and consistency.Originality/valueThe paper reveals in‐depth the strategies and actions that have been implemented by an organization to fight against climate change. Also, this study allows managers to know the influence of the different factors affecting the stages of the consolidation process within the organization of an effective policy for the control and reduction of emissions, which is very useful for planning and evaluating during the process.
Design of educational systems for work based learning (WBL): the learner experience
Authors: Liyanage Lalith , Strachan Rebecca , Penlington Roger , Casselden Biddy 
Published: February 2013

PurposeInformation and communication technologies have transformed higher education providing e‐mechanisms to support the delivery of content, communication and interaction. One example is the widespread adoption of virtual learning environments (VLEs) by higher education institutions to provide a key interface among learners, the content and tutors. The aim of this paper is to explore the effectiveness of the design of educational systems for work based learning (WBL) from the learner's perspective. The study includes consideration of the use of technology to support the work based learning process for the learner.Design/methodology/approachCase studies from four postgraduate programmes and one undergraduate programme within the School of Computing, Engineering and Information Sciences (CEIS) at Northumbria University are presented. Key results from a survey of students on these programmes are discussed.FindingsThe results demonstrate that there are different motivations for this type of provision when compared with more conventional higher education programmes. In this digital age, technology should be a key enabling factor and students expect its adoption to support the learning process. However, academic institutions and staff are still not fully exploiting the possibilities of new media technologies through adapting their approaches to learning.Originality/valueTraditionally the WBL concept has focused on two of the stakeholder contexts, namely the learner and the academic environment. Consideration of the other two important stakeholder contexts: the workplace and the external environment could significantly enrich the student experience and overall effectiveness of WBL delivery. The current study aims to address this deficit by considering all four stakeholders contexts in one model in order to evaluate the effectiveness of design of educational systems for WBL. This paper presents the first of these stakeholder contexts, the learner experience.
Co‐delivered work based learning: contested ownership and responsibility
Authors: Meakin Denise , Wall Tony 
Published: February 2013

PurposeThe purpose of this paper is to explore, from a practitioner perspective, the tensions in facilitating the “challenging and complex” terrain of co‐delivered work based learning (WBL) – a growing area of practice in the UK, but under‐researched and under‐discussed – and a possible cutting edge resolution which is currently being developed.Design/methodology/approachThe article draws from on‐going practitioner research using a first person action research methodology which uses critical reflection and peer discussion over two years.FindingsAlthough higher education institutions are required (by regulation) to be responsible for the quality of teaching, learning and assessment of the qualifications granted in their name, this becomes problematic in co‐delivery. Three tensions emerged which contest such ownership and responsibility: a perception (or preference) of co‐delivery trainers to be “trainers delivering training” rather than owning/taking responsibility for teaching, learning and assessment; a perceived “legitimacy dilemma” in relation to the relative importance of the training against the assessment elements; and a “displacement” of the academic by her colleagues from an academic position to being part of the training organisation.Research limitations/implicationsWithin a tradition of qualitative practitioner research, this article encourages practitioners to consider these possible tensions in their own practice, and possible resolutions.Practical implicationsThis paper raises on‐going issues in a reportedly “challenging and complex” area of practice, and a possible resolution which is currently being developed.Originality/valueThis paper foregrounds the importance of the practitioner perspective in organisational development and change in the co‐delivery of WBL.
Developing practical social inclusion outcome measures to evidence mental health recovery
Authors: Ryan Tony , Clark Michael , Dixon Nick 
Published: February 2013

PurposeThe aim of this paper is to describe the development of a suite of social inclusion outcome measures and how they are being applied in practice within Stockport.Design/methodology/approachThe paper gives a description of the development approach; the development of the measures and how the data collection systems have been established.FindingsA suite of practical measures of social inclusion has been developed that are being used to inform local service delivery, commissioning and service redesign with the purpose of evidencing the effectiveness of provision in delivering social inclusion for people who have used mental health services in Stockport.Research limitations/implicationsThe paper does not contain data. It is anticipated that the data will inform a business case for commissioning in new ways and which may be the subject of a further paper.Practical implicationsThe paper describes the practical approaches that have led to the development of the measures.Social implicationsThe measures will be able to demonstrate the social impact of services for people who use them.Originality/valueMental health services are striving to develop meaningful measures that are embedded in day‐to‐day practice and are meaningful to people who use services. These measures and the way they are being used in services will provide evidence to service commissioners of effectiveness and have been signed off as such by commissioners. The outcomes framework will have implications locally for the implementation of payment by results in mental health.
Fault tolerant autonomous rendezvous and docking architecture for spacecraft in presence of control actuator failures
Authors: Jayaram Sanjay 
Published: February 2013

PurposeThe purpose of this paper is to present novel robust fault tolerant control design architecture to detect and isolate spacecraft attitude control actuators and reconfigure to redundant backups to improve the practicality of actuator fault detection.Design/methodology/approachThe Robust Fault Tolerant Control is designed for spacecraft Autonomous Rendezvous and Docking (AR&D) using Lyapunov direct approach applied to non‐linear model. An extended Kalman observer is used to accurately estimate the state of the attitude control actuators. Actuators on all three axes (roll/pitch/yaw) sequentially fail one after another and the robust fault tolerant controller acts to reconfigure to redundant backups to stabilize the spacecrafts and complete the required maneuver.FindingsIn the simulations, the roll, pitch and yaw dynamics of the spacecraft are considered and the attitude control actuators failures are detected and isolated. Furthermore, by switching to redundant backups, the guarantee of overall stability performance is demonstrated.Research limitations/implicationsA real time actuator failure detection and reconfiguration process using robust fault tolerant control is applied for spacecraft AR&D maneuvers. Finding an appropriate Lyapunov function for the non‐linear dynamics is not easy and always challenging. Failure of actuators on all three axes at the same time is not considered. It is a very useful approach to solve self‐assembly problems in space, spacecraft proximity maneuvers as well as co‐operative control of planetary vehicles in presence of actuator failures.Originality/valueAn approach has been proposed to detect, isolate and reconfigure spacecraft actuator failures occurred in the spacecraft attitude control system. A Robust Fault Tolerant Control scheme has been developed for the nonlinear AR&D maneuver for two spacecrafts. Failures that affect the control performance characteristics are considered and overall performance is guaranteed even in presence of control actuator failures. The architecture is demonstrated through model‐based simulation.
A robust semi‐decentralized fault detection strategy for multi‐agent systems
Authors: Davoodi M.R. , Khorasani K. , Talebi H.A. , Momeni H.R. 
Published: February 2013

PurposeThe aim of this paper is to address the problem of fault detection (FD) of linear continuous‐time multi‐agent systems.Design/methodology/approachA mixed H∞/H− formulation of the FD problem using semi‐decentralized filters is presented.FindingsIt is shown that through a decomposition approach the drawbacks of the existing distributed FD design methods in multi‐agent systems can be effectively tackled. An extended linear matrix inequality (LMI) characterization is used to reduce the conservativeness of the design solution by introducing additional matrices in order to eliminate the couplings of the Lyapunov matrices with the agent's matrices.Research limitations/implicationsIt is shown that by applying the proposed decomposition approach the FD problem of multi‐agent systems can be solved by analyzing the problem of a set of decoupled systems whose order and complexity are equal to that of a single agent. This procedure will be useful for both simplifying the computational cost of the solution as well as for developing a fault detection filter having a semi‐decentralized architecture.Practical implicationsApplication of this methodology to a network of micro‐air vehicles (MAVs) illustrates the effectiveness and capabilities of the proposed design methodology.Social implicationsThe feasibility of the use of reliable and self‐healing network of unmanned systems, cooperative networks, and multi‐agent systems will be significantly enhanced and improved by the development of advanced fault detection and isolation (FDI) technologies.Originality/valueA semi‐decentralized fault detection (FD) methodology is developed for linear multi‐agent networked systems to reduce the order and complexity of the observers at each agent. A mixed H∞/H− formulation of the FD problem by using semi‐decentralized filters is presented. Using this approach each agent can not only detect its own faults but also is able to detect its nearest neighbor agents’ faults.
Aerodynamic modelling of flapping flight using lifting line theory
Authors: Bhowmik Joydeep , Das Debopam , Ghosh Saurav Kumar 
Published: February 2013

PurposeThe purpose of the work is to design a flapping wing that generates net positive propulsive force and vertical force over a flapping cycle operating at a given freestream velocity. In addition, an optimal wing is designed based on the comparison of the force estimated from the quasi‐steady theory, with the wind‐tunnel experiments. Based on the designed wing configuration, a flapping wing ornithopter is fabricated.Design/methodology/approachThis paper presents a theoretical aerodynamic model of the design of an ornithopter with specific twist distribution that results generation of substantial net positive vertical force and thrust over a cycle at non‐zero advance ratio. The wing has a specific but different twist distribution during the downstroke and the upstroke that maintains the designed angle of attack during the strokes. The wing is divided into spanwise strips and Prandtl's lifting line theory is applied to estimate aerodynamic forces with the assumptions of quasi‐steady flow and the wings are without any dihedral or anhedral. Spanwise circulation distribution is obtained and hence lift is calculated. The lift is resolved along the freestream velocity and perpendicular to the freestream velocity to obtain vertical force and propulsive thrust force. Experiments are performed in a wind tunnel to find the forces generated in a flapping cycle which compares well with the theoretical estimation at low flying speeds.FindingsThe estimated aerodynamic force indicates whether the wing geometry and operating conditions are sufficient to carry the weight of the vehicle for a sustainable flight. The variation of the aerodynamic forces with varying flapping frequencies and freestream velocities has been illustrated and compared with experimental data that shows a reasonable match with the theoretical estimations. Based on the calculations a prototype has been fabricated and successfully flown.Research limitations/implicationsThe theory does not take into account the unsteady effects and estimates the aerodynamic forces at wing level condition. It doesn’t predict stall and ignores structural deformations due to aerodynamic loads. The airfoil section is only specified by the chord, zero lift angle of attack, lift slope, profile drag coefficient and angle of attack as given inputs. To fabricate a light weight wing that maintains a very accurate geometric twist and camber distribution as per the theoretical requirement is challenging.Practical implicationsUseful for designing ornithopter wing (preferably bigger) involving an unswept rigid spar with flapping and twisting.Originality/valueThe novelty of the present wing design is the appropriate spanwise geometric twisting about the leading edge spar.