排序方式: 共有46条查询结果,搜索用时 15 毫秒
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Roya Soltani Seyed Jafar Sadjadi 《Transportation Research Part E: Logistics and Transportation Review》2010,46(5):650-666
In a cross-docking system, trucks must be scheduled to minimize the total flow time of the system. This problem is NP-hard, and this study proposes two hybrid meta-heuristics—hybrid simulated annealing and hybrid variable neighborhood search—to solve it by achieving the best sequence of truck pairs. The Taguchi method serves to reveal the best robustness of these algorithms. To demonstrate the effectiveness of the proposed methods, especially for large-sized problems, this study solves various test problems, and the computational results clearly reveal that the proposed methods outperform previous approaches. 相似文献
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Ebrahim Bazrafshan 《金融市场、机构和票据》2023,32(4):133-169
According to the pecking order theory, firms with potential investment projects should raise external capital if and only if sufficient internal funds are not available. The theory can be violated if equity issuers are motivated by market timing and increasing funds for insiders’ benefits, indicating that firms may already have internal funds surplus without including external funds, but still issue equity. By controlling for future funds needs, the analyses show that issuers that engage in market timing and spend the SEO proceeds on value-destroying projects are strongly associated with their internal funds surplus. Moreover, SEO announcement returns are lower for issuers with internal funds surplus. This pattern strongly supports the predictive ability of internal funds surplus to detect the need for external capital and ultimately to determine timing incentives and agency spending of SEO proceeds. 相似文献
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This paper studies the impact of financial development on asset valuation. We model the agency theoretic perspective of risk-averse investors and financiers in a general equilibrium setting under the framework of rational expectations (i.e., symmetric information). We focus on real estate, as it constitutes a special case of complete market contracting where adverse selection and moral hazard are easily mitigated. Our results illustrate an increase in pareto-efficiency, as financial architecture advances from: (i) banks to capital markets; and (ii) plain vanilla debt to an innovative one with participation clauses. This is attributed to the reduction in agency costs and cross-sectional risk-sharing, leading to an increase in the value of property. Our results predict that an optimal financial system will orient itself towards efficient financial contracts, irrespective of its source of origination. We also rationalize the co-existence of banks and capital markets, and generalize our results under a set of restrictive conditions. 相似文献
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Pejman Abedifar Shahid M. Ebrahim Philip Molyneux Amine Tarazi 《Journal of economic surveys》2015,29(4):637-670
This paper examines the recent empirical literature in Islamic banking and finance, highlights the main findings and provides a guide for future research. Early studies focus on the efficiency, production technology and general performance features of Islamic versus conventional banks, whereas more recent work looks at profit‐sharing and loss‐bearing behaviour, competition, risks as well as other dimensions such as small business lending and financial inclusion. Apart from key exceptions, the empirical literature suggests no major differences between Islamic and conventional banks in terms of their efficiency, competition and risk features (although small Islamic banks are found to be less risky than their conventional counterparts). There is some evidence that Islamic finance aids inclusion and financial sector development. Results from the empirical finance literature, dominated by studies that focus on the risk/return features of mutual funds, finds that Islamic funds perform as well, if not better, than conventional funds – there is little evidence that they perform worse than standard industry benchmarks. 相似文献
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Ebrahim Mazaheri Marie Odile Richard Michel Laroche Linda C. Ueltschy 《Journal of Business Research》2014
This paper examines how emotions and website atmospheric cues influence service tangibility and consumer attitudes. The proposed model was compared across three cultures: North America (Canada and U.S.), China, and the Middle East. The findings support the overall model and demonstrate several non-invariant paths across the groups. Particularly, the results suggest how the influences of two emotional dimensions (pleasure and dominance) on consumer perceptions of site atmospherics vary across cultures. Moreover, the effects of service tangibility dimensions (physical tangibility, specificity, and mental tangibility) on consumers' attitudes toward the website and service vary significantly across the three cultures. Mental tangibility has the greatest influence on North American customers' attitudes, while physical tangibility and specificity have the greatest impact on Chinese and Middle Eastern customers' attitudes, respectively. 相似文献
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Ebrahim Mazaheri Marie-Odile Richard Michel Laroche 《Journal of Business Research》2011,64(9):958-965
Zajonc's (1980) theory of emotions and Mehrabian and Russell's (1974) stimulus-organism-response (SOR) framework inform the development of a model of online customer behavior. The model examines the impacts of the three types of emotions (pleasure, arousal, and dominance) on perceptions of site atmospherics (informativeness, effectiveness, and entertainment). In turn, the associations of site atmospherics on site attitudes, site involvement, service attitudes, and purchase intentions are investigated. The model is compared between Canadian and Chinese customers based on Hofstede's (1991) cultural value dimensions. The findings supported the model and revealed several non-invariant paths between the groups. Particularly, the impact of pleasure (dominance) on the other behavioral variables was higher for Canadian (Chinese) compared to Chinese (Canadian) customers. Moreover, the impacts of low (high) task relevant cues were stronger for Chinese (Canadian) customers compared to their Canadian (Chinese) counterparts. Discussion centers on the theoretical and practical implications of the findings. 相似文献
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Much has been written on the nature of international assignees’ experiences of managing Multinational Corporation (MNC) affiliates in the context of Western economies. This study aims to broaden the debate and elucidate these issues in the largely overlooked region of Middle East with a particular focus on Iran. Data from six MNC affiliates across two high growth global industries reveals that the nature of international assignees’ experiences can be explained in terms of desirable, indifference, and undesirable effects of managing MNC affiliates. Specifically, it was found that the international assignees’ perceptions of managing MNC affiliates were formed prior to their appointments. Furthermore, while conformance to headquarter (HQ) managerial orientations was seen to serve as a proxy for earlier desirable experiences of these international assignees, their current performance was seen to deteriorate by the need to fully comply with the HQ's way of doing things. Together, these findings support the view that the degree of congruence or fit between, on the one hand, the HQ and international assignees’ orientations, and on the other hand, between the international assignees and the host country culture could have implications for the success or failure of the international assignees in the context of Iranian-based MNCs. Finally, the paper concludes with implications and lessons for policy makers, practitioners and academics. 相似文献
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Rafal M. Wojakowski M. Shahid Ebrahim Aziz Jaafar Murizah Osman Salleh 《金融市场、机构和票据》2019,28(2):141-158
This study focuses on structuring tangible asset backed loans to inhibit their endemic option to default. We adapt the pragmatic approach of a margin loan in the configuring of collateralized debt to yield a quasi‐default‐free facility. We link our practical method to the current Basel III (2017) regulatory framework. Our new concept of the Loan Valuation Adjustment (LVA) and novel method to minimize the LVA converts the risky loan into a quasi risk‐free loan and achieves value maximization for the lending financial institution. As a result, entrepreneurial activities are promoted and economic growth invigorated. Information asymmetry, costly bailouts and resulting financial fragility are reduced while depositors are endowed with a safety net equivalent to deposit insurance but without the associated moral hazard between risk‐averse lenders and borrowers. 相似文献