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151.
In practice, multinational corporations (MNCs) and other international investors take into account a number of criteria in the process of evaluating a country's risk level. The most popular quantitative approach currently employed to evaluate a country's risk level applies a set of fixed (often equal) weights to the risk criteria employed. Unfortunately the criteria weights, since they are fixed, are the same for all investors and for all projects, regardless of their specific risk sensitivities. The approach developed in this paper allows international investors to rank the risk criteria themselves, according to both their importance and their relative clarity. Since investors' projects possess heterogeneous sensitivities to the various types of risk, they will, in general, rank the various criteria (risks) differently. This allows investors to determine a different optimal set of criteria weights and hence, to obtain individualized ratings (and hence, rankings) of the countries, which reflect the unique risk sensitivities possessed by each of their projects.  相似文献   
152.
In many research contexts it is useful to group experimental subjects into behavioral “types.” Usually, this is done by pre-specifying a set of candidate decision-making heuristics and assigning each subject to a heuristic in that set. Such approaches might perform poorly when applied to subjects with prefrontal cortex damage, because it can be hard to know what cognitive heuristics such subjects might use. We suggest that the Houser, Keane and McCabe (HKM) robust classification algorithm can be a useful tool in these cases. An important advantage of this classification approach is that it does not require one to specify either the nature or number of subjects' heuristics in advance. Rather, both the number and nature of the heuristics are discerned directly from the data. To illustrate the HKM approach, we draw inferences about heuristics used by subjects in the well-known gambling task [Bechara, A., Damasio, A.R., Damasio, H., Anderson, S., 1994. Insensitivity to future consequences following damage to human prefrontal cortex. Cognition 50, 7–12].  相似文献   
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新冠肺炎疫情对全球食物安全的影响及对策   总被引:2,自引:0,他引:2  
当前,新冠肺炎疫情已在全球扩散,许多本就因为冲突、自然灾害或气候变化而深陷食物不安全的国家和地区的防疫形势也日益严峻。虽然目前全球食物供给总体充足,食物价格稳定,但疫情的快速蔓延将给全球食物安全带来威胁。由于隔离和边境关闭,市场、供应链和贸易受到波及,全球食物的供给受到影响。食物流通渠道可能因运输中断和更加严格的检疫措施而受阻,运输成本和贸易成本增加、效率降低。一些国家为保障国内食物供应而采取限制出口的行为,将影响依赖于粮食进口的国家进口粮食,也不利于依赖于出口初级农产品的低收入发展中国家出口农产品。封锁措施带来的经济影响使居民收入和购买力下降,居民获得充足的营养食物变得更加困难。食物安全不再是一个区域性问题,而是一个需要共同应对的全球性问题,各国应当共同努力,加强合作和全球治理,对最弱势群体采取迅速的保护和援助措施。既要确保国内食物供应链的正常运行,同时,应该保持贸易开放,并利用和创新电子商务保障食物供应,保障全球粮食安全。  相似文献   
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In this study, I investigate the impact of managerial reputation, as proxied by high‐profile awards to CEOs, on financial reporting practices and firm performance. Using a sample of 269 awards given to 189 celebrity CEOs (CEOs who win awards) from 1987 to 2003, I compare within‐firm changes in financial reporting practices and firm performance before and after each CEO wins their first award. I find that celebrity CEOs engage in more conservative accounting practices and are less likely to engage in opportunistic earnings management to meet short‐term earnings benchmarks. In addition, firm performance improves after celebrity CEOs win awards.  相似文献   
158.
This research examines the performance implications of integrating information technology with marketing capabilities and other firm-level resources. Specifically, this study introduces and empirically tests a model that conceptualizes e-Marketing as the integration of complementary technology, business and human resources that, when combined, positively influence firm performance. The results from a survey of 522 Belgian firms highlight the importance of how market and technology orientation leads to e-Marketing capability and that this capability is shown to positively influence firm performance by improving customer retention and satisfaction. The results suggest that researchers and practitioners should pay special attention to the complementary resources that are needed to successfully implement IT-enabled marketing initiatives and that an emphasis on the technology alone may not be sufficient.  相似文献   
159.
This study has employed a case-based approach to explore the relevance of relational factors in explaining the internationalization of six software B2B SMEs from Syria. It contributes by providing rare empirical insights on the internationalization behavior of Middle Eastern SMEs and redressing, albeit slightly, the apparent research gap in the internationalization of knowledge-based SMEs from developing countries. Analysis results suggest the importance of the relational perspective in explaining the initial internationalization, market selection and internationalization speed of the investigated software firms. It emerged that the case firms either reacted to the cross-border opportunities offered by their relational contacts or proactively pursued overseas opportunities through existing and newly developed relationships. Their market entry decisions and internationalization pace also appear to have been influenced by these relationships. Both social and business networks were found to be important, but social ties seemed more influential at initial stages, with business networks becoming more dominant subsequently. The article concludes with appropriate recommendations for managerial decision making and future research.  相似文献   
160.
Resource degradation poses problems in many developing countries. In the model presented in the paper, current agricultural production lowers future land productivity. Since agents must produce to meet current subsistence needs, this can lead to a poverty trap in which land quality is continuously degraded over time. However, the model shows that not all subsistence farmers fall into this trap, although it might be difficult in practice to distinguish among those belonging to each case. The model also demonstrates why government programs such as income transfers, loans, and price controls might have differing effects upon economic outcomes depending upon the specific circumstances of farmers.  相似文献   
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