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21.
Corporate social responsibility (CSR) is an increasingly important topic in management, especially in organizational behavior field across the globe; however, this concept is still in its infancy in Pakistan. In this study, we examined the effect of employees’ perceptions about CSR on their Desire to have a Significant Impact through Work (DSIW). We suggested the serial mediation of organizational identification and organizational pride in this relationship. The time-lag data of middle managers were collected from a well-known Pakistani firm that is actively engaged in CSR. The data consist of 187 observations and were analyzed using structural equation modeling in AMOS software. The results show that CSR positively affects employees’ identification that in turn make employees proud of their organizational membership and finally pride leads to employees’ DSIW. The study contributes in CSR and organizational behavior literature and provides managerial implication to enhance the positive psychological state of employees. 相似文献
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Pakistan’s banking industry has gone through significant transformation from being in a heavily state regulated and controlled environment to a more liberalized market structure in recent years. This liberalization of banking industry in Pakistan has raised concerns over the dominant banks’ exercise of market power on account of increase in market concentration due to mergers and acquisitions, high profitability in banking sector and increasing interest rate spread. Present study therefore explicitly tests the market conduct of banks using quarterly panel data of 30 banks from 2004 to 2012 and employing Panzar–Rosse, Bresnahan–Lau, Hall–Roeger and Boone’s approaches to study market power. Our findings suggest that Pakistan’s banking industry is working in a competitive environment and we find little evidence for the exercise of market power by the dominant banks. Our results remain robust across all these approaches to measure market power. These findings indicate that the liberalization and deregulation of Pakistan’s banking industry has been successful in improving the competitive conditions in the market. 相似文献
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Processing facilities handling large amounts of hazardous substances are attractive targets for terrorists. Thus, these work sites are exposed not only to accidents but also to intentional threats. Some research has separately studied risk caused by either potential accidental events or terrorist acts. However, studies focusing on integrated risk assessment and management (dealing with both safety and security issues) are lacking. This paper proposes an approach to assess and manage integrated risks. This method is based on an influence diagram which incorporates safety and security-related factors into one framework. It considers the effects of management actions on both accidental and intentional risks. This method can help to detect hidden risk (i.e., the risk not recognized during design and operation stages) and ensure to reduce the real risk to an acceptable level by guiding the selection of management actions. The effectiveness of the proposed method is demonstrated using the overfilling risk management of an oil tank. © 2018 American Institute of Chemical Engineers Process Process Saf Prog 38: 42–51, 2019 相似文献
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Faisal Khurshid Woo‐Yong Park Felix T. S. Chan 《Business Strategy and the Environment》2020,29(3):789-800
Despite there being numerous studies exploring the relationship between competition and vertical integration, the empirical findings regarding the nature of this relationship are still unclear. The current study suggests that technological niche width mediates the relationship between competition and vertical integration. It also suggests that technological niche width and vertical integration play a complementary role in enhancing firm performance. These arguments have found empirical support in the examination of the U.S. hybrid electric vehicle market from 2008 to 2016. In so doing, this study provides an opportunity to better understand the relationship between competition, vertical integration, and technological niche width. In addition, it explains how firms can effectively manage fierce competition and achieve the goal of superior performance through strategic decisions regarding vertical integration and technological niche width. 相似文献
25.
Quality of service (QoS) determines the service usability and utility and both of which influence the service selection process. The QoS varies from one service provider to other. Each web service has its own methodology for evaluating QoS. The lack of transparent QoS evaluation model makes the service selection challenging. Moreover, most QoS evaluation processes do not consider their historical data which not only helps in getting more accurate QoS but also helps for future prediction, recommendation and knowledge discovery. QoS driven service selection demands a model where QoS can be provided as a service to end users. This paper proposes a layered QaaS (quality as a service) model in the same line as PaaS and software as a service, where users can provide QoS attributes as inputs and the model returns services satisfying the user’s QoS expectation. This paper covers all the key aspects in this context, like selection of data sources, its transformation, evaluation, classification and storage of QoS. The paper uses server log as the source for evaluating QoS values, common methodology for its evaluation and big data technologies for its transformation and analysis. This paper also establishes the fact that Spark outperforms the Pig with respect to evaluation of QoS from logs. 相似文献
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Abdullah Sardar Vikram Garaniya Mohan Anantharaman Rouzbeh Abbassi Faisal Khan 《Process Safety Progress》2022,41(Z1):S27-S38
Daily operations onboard ships are very challenging due to man–machine interactions. To improve daily operational safety and to prevent losses due to machinery breakdown, effective risk management techniques need to be developed, considering various operational and environmental factors affecting the seafarers' performance. The current study explains the comparison between simulation and conventional classroom training to enhance safety in maritime operations in compromised environments. The contribution of this study lies in introducing the concept of social fidelity in simulator-based training. This study bridges the gap between computer technology and collaborative learning activities in simulator-based training. The result obtained through the simulation improves marine engineers' training and enhances the reliability of marine engines. This paper concludes by proposing a set of recommendations for the future design of simulator-based training for marine engineers. 相似文献
27.
Amr Ibrahim Tahoon Risza Rusli Faisal Khan Mardhati Zainal Abidin 《Process Safety Progress》2020,39(Z1):e12110
Process systems are becoming complex due to a higher dependency among operational variables and complex control loops. Principal component analysis (PCA) is widely used to reduce the dimensionality of the complex process systems, while Bayesian networks (BNs) are increasingly employed to model relationships among the operational variables. This article integrates these two methods (BN and PCA) through a logic-based approach to study the fault conditions of a process system. A distillation pilot plant is used to test the integrated approach. The process monitoring data are analyzed using the PCA to identify the abnormality variables while the BN is developed using data-driven learning. The variable dependency in the BN nodes is learned through maximum likelihood estimation. The results of the proposed approach are compared against the logic-based full BN model. The study observes that the logic-based PCA-BN approach proposed improves the reliability of fault detection. While the logic-based full BN provides a better understanding of fault propagation path through the unit, which helps track and troubleshoot the detected faults. 相似文献
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Tarek Ibrahim Eldomiaty Tariq Bin Faisal Al Qassemi Ahmed Fikri Mabrouk Lamia Soliman Abdelghany 《Macroeconomics and Finance in Emerging Market Economies》2016,9(3):262-283
How can a government help secure low-cost equity financing? This study offers an answer that a government can secure sustainable economic progress when policies of economic freedom are well institutionalized in a way that results in low equity volatility, thus low-cost equity financing. This study examines the quantitative and empirical associations between elements of Economic Freedom Index (being treated in this study as a proxy for institutional quality) and stock market volatility. The authors classify the institutional quality into three levels: high, medium and low. The data cover the years 1996–2014 for the MENA countries. The statistical tests include fixed and random effects, linearity versus non-linearity. The results show that stock market volatility can be mitigated and reduced when economic freedom is associated with an effective enforcement of law and efficient regulations. Nevertheless, the high freedom from corruption results in active equity trading which is associated with high volatility that leads in turn to high cost of equity financing. The study contributes to the literature in terms of offering practical insights on the pillars of economic freedom that policymakers must improve in order to mitigate or reduce equity volatility, therefore cost of equity financing. 相似文献
30.
Chemical process systems are becoming extremely complex due to increased automation, heat and mass intensification, and expectation of higher efficiency. Many fault detection and diagnostic methods have been proposed for processing facilities. However, managing the missed alarm rate and the false alarm rate (FAR) in the detection and isolation of the fault is crucial in the complex process systems. This work presents a new data-driven fault detection model using an artificial neural network (ANN) and variable mosquito flying optimization (V-MFO) technique. The model is based on the optimization of the number of neurons in the hidden layer of the neural network. Subsequently, the model parameters have been tuned using the V-MFO algorithm for maximizing the fault detection rate (FDR) while minimizing the FAR. The proposed fault detection method has been implemented on the Tennessee Eastman benchmark process. The performance of the proposed model has been evaluated in terms of accuracy, FDR and FAR against well-known statistical-based methods such as principal component analysis (PCA), kernel PCA, semiparametric PCA, modified independent component analysis, k nearest neighbors, linear discriminant analysis, support vector machine, and the ANN. The model is observed to be competitive for fault detection among the test algorithms. It recorded slightly improved accuracy and FDR. The proposed model also resulted in 0.6% improvement in the FAR and 8% improvement in missed detection rate compared to the simple ANN. This method provides an efficient fault detection tool for complex process systems. 相似文献