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91.
92.
随着企业开始重新关注增长,创新冉一次成为了优先要务:在最近进行的麦肯锡全球调查中1,84%的高管称创新对于其企业的增长战略极为重要或非常重要.调查结果还显示,与危机前相比,企业用于产生出色创意并将这些创意转变为产品或服务的方法变化不大,而这并非因为高管们认为这些方法非常有效.此外,发现合适的人才、鼓励协作与承担风险,以及从头到尾组织创新流程等挑战也依然如故,这一点值得大家注意.事实上,过去几年的调查显示,成功创新的核心障碍一直没有变化,而企业在克服这些障碍方面也没有什么进展.  相似文献   
93.
94.
The risk of non‐indigenous plant pests entering the UK via international trade in fresh produce is increasing. The objective of this article is to identify existing and emerging supply sources for UK fresh produce importers and examine the extent to which they could provide invasion pathways. We tested the hypothesis that increased imports of fresh produce from new sources outside the European Union could increase the risks of non‐indigenous insect pests. We use a bio‐economic model approach in which the number of species arrivals is a function of the volume of imports, whereas the volume of imports itself is a function of gross domestic product, relative import prices and seasonality. The study has identified clear trends, which show import volumes of fresh produce and species detections increasing from new supply sources. If this trend continues in the future, then the UK inspection agency should expect to confront species from new suppliers in much greater numbers, given that import volumes of fresh produce are income elastic.  相似文献   
95.
This article uses cointegration and error-correction models to analyze the causal relationship between agricultural export diversification and economic growth in eight selected Caribbean countries using annual data from 1961 to 2000. The empirical results show that in the short run, agricultural export diversification Granger causes economic growth in Barbados and Belize. Noncausality exists for the other countries. In the long run, agricultural export diversification also Granger causes economic growth in the Dominican Republic. On the contrary, agricultural export diversification is the outcome of the economic growth process in Belize, Costa Rica, Haiti, and Jamaica, in the long run. Noncausality exists in Trinidad and Tobago. There is no evidence of bi-directional causality in any of the countries in either the short or long run.  相似文献   
96.
This study evaluated the effectiveness of red-light cameras in Dammam, the Kingdom of Saudi Arabia. Two methods were used to assess changes in crash risk at the intersections at which the red-light camera programme had been operating. Geospatial analysis was used to visualize trends in road crash density over the geographical region of Dammam and a pre--post-camera crash analysis was undertaken. The distribution of injury crashes was greater than that of crashes which included property damage, the latter of which was concentrated around central Dammam. The five red-light cameras installed in 2012 were located outside areas of high-crash and injury density, and the total number of crashes reported in the three-month periods after installation was double that before the cameras were installed. This increase in the number of crashes also occurred at the five comparison sites (without red-light cameras), indicating a null effect. The findings from this study are contrary to previous evaluations of speed management programmes associated with red-light cameras. The study highlights the challenges in obtaining data for such research and illustrates that a reliance on overt, fixed camera's to manage speed is unlikely to deliver significant reductions in road trauma.  相似文献   
97.
Containerized freight imports into the US are growing at an average of 10% per year. This traffic is concentrated at a small number of US seaports. It is therefore important to have an accurate understanding of the flow of containers from their origin country through these seaports to their final destination. This paper develops an optimization model to estimate route flows and a corresponding multi-modal origin–destination table for containers by synthesizing data on international trade and railcar movements with a gravity model for the demand of container traffic. This analysis provides insights into the balance of rail and truck inland transportation from each port.  相似文献   
98.
Supply chain management (SCM) plays a major role in creating (or destroying) shareholder value by influencing the three major drivers of firm financial performance: revenue, operating costs, and working capital. Yet, the relationship between SCM competency and firm financial performance is not well‐established. Drawing on the resource‐based view of the firm, this study assesses this relationship using Delphi‐style opinion data from AMR Research’s Supply Chain Top 25 rankings to assess SCM competency and Altman’s (1968) Z‐score statistic as the measure of financial success. The study findings show that firms recognized by industry experts for SCM competency have significantly higher Z‐scores than their close competitors and industry averages.  相似文献   
99.
The article formalizes a seminal suggestion of Sloane ( 1971 ), studying a sports league in which club objectives are multi‐argument utility functions defined over profits, win percentages and fan (=supporter) welfare, thus combining the three objectives that have been addressed separately in previous models. Particular focus is on the consequences of increasing the utility weight on fan welfare, to capture the recent increasing supporter involvement in club governance in UK football. Positive consequences are unambiguously higher attendances, with more nuanced affects on ticket prices and player expenditure. A normative consequence is that positive profits for club owners indicate social sub‐optimality.  相似文献   
100.
This paper considers modelling the behaviour of prices in the English and Welsh wholesale electricity Pool since the creation of this spot market in 1990. The process turns out to be nonlinear and a logistic smooth transition autoregressive model is fitted and shown to be superior to a linear alternative. The behaviour of the estimated model is discussed, and it is seen that nonlinearity is needed to describe the institutional characteristics and historical path of pool prices.  相似文献   
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