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61.
The over-representation of young drivers in road crashes remains an important concern worldwide. Cluster analysis has been applied to young driver sub-groups, but its application by analysing crash occurrence is just emerging. We present a classification analysis that advances the field through a holistic overview of crash patterns useful for designing youth-targeted road safety programmes. We compiled a database of 8644 New Zealand crashes from 2002 to 2011 involving at least one 15–24-year-old driver and a fatal or serious injury for at least one road user. We considered crash location, infrastructure characteristics, environmental conditions, demographic characteristics, driving behaviour, and pre-crash manoeuvres. The analysis yielded 15 and 8 latent classes of, respectively, single-vehicle and multi-vehicle crashes, and average posterior probabilities measured the odds of correct classification that revealed how the identified clusters contain mostly crashes of a particular class and all the crashes of that class. The results raised three major safety concerns for young drivers that should be addressed: (1) reckless driving and traffic law violations; (2) inattention, error, and hazard perception problems; and (3) interaction with road geometry and lighting conditions, especially on high-speed open roads and state highways.  相似文献   
62.
The contrast between industrial experience in East and South East Asia and Latin America is dramatic. Whilst a first generation of newly industrialized economies in East Asia grew rapidly on the basis of manufacturing expansion, the longer‐established industries of Latin America have performed relatively poorly by most indicators. This paper utilizes data from UN and World Bank databases to assess relative performance since the early 1980s. It shows that whilst there is some evidence of modest catch‐up in efficiency terms for Latin America in the 1990s, this is not enough to make serious inroads into the loss of international competitiveness experienced by the region in earlier decades.  相似文献   
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A new product originates from an idea, or in many cases, integration of multiple ideas. The process of transforming an idea into a robust concept requires definition of the underlying technologies, identification of expected customer benefits, and assessment of the market opportunity. The idea-development and subsequent idea-selection stages of new product development are often referred to as the "fuzzy front end" because they typically involve ad hoc decisions and ill-defined processes. To address this shortcoming, Nortel developed an idea-to-opportunity front-end process that provides a consistent and structured approach for idea development and evaluation. This article describes the process and how it was implemented using electronic performance support technology.  相似文献   
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Using the framework provided by the Porter hypothesis, we study the impact of environmental regulations and enforcement policies on plant‐level green total factor productivity (TFP) growth and its components related to efficiency change and technical change. The detailed microdata we use are from Sweden and for the pulp and paper industry. This industry is the source of significant amounts of water and air pollution and is one of the most heavily environmentally regulated manufacturing industries. Sweden has a unique decentralized regulatory structure where the manufacturing plants have to comply with plant‐specific regulatory standards stipulated at the national level, as well as decentralized local supervision and enforcement. Our empirical results point to beneficial impacts of the environmental policies on plants' green TFP growth and sustainable production practices. We also find that political economy considerations are important, as the presence of the Green Party and aspects like plant size (with corresponding local and regional economic effects) matter in enforcement of the standards.  相似文献   
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This article studies the prevalence and nature of zero hours contracts (ZHCs) in the UK labour market. It is widely argued that the headline count of ZHC workers based on the Labour Force Survey historically underestimated the number of workers in ZHC jobs. Here, we argue that this likely continues to be the case, particularly if one considers other, similar, no-guaranteed-hours jobs alongside ZHCs. ZHC jobs and workers are heterogeneous, but ZHCs have become increasingly concentrated among young workers, full-time students, migrants, black and minority ethnic workers, in personal service and elementary occupations, and in the distribution, accommodation and restaurant sector over time. Compared to other forms of employment, median wages in ZHC jobs have also fallen. The most common prior labour market state for ZHC workers is non-ZHC employment, particularly part-time employment, with part of the reported growth in ZHCs driven by reclassification of existing employment relationships. Finally, we show that growth in public awareness of ZHCs contributed substantially to recent growth in reported ZHCs, particularly over the period 2013/14.  相似文献   
67.
The primary focus of this paper is the modeling and estimation of total factor productivity growth in banking. The measured total factor productivity growth is decomposed into its main components: 1) scale economy and output growth, 2) branching effect, and 3) technological change effect. Our findings indicate that total factor productivity grew at an annual average rate of 7.8% for the 1979–1982 period but this growth has slowed down to only 2.9% for the 1981–1982 period. Scale economy and output growth have contributed to about four-fifths of the growth, whereas branch growth and technical change have contributed to one-fifth of the growth. An important observation is the increasing importance of both branch growth and technical change throughout the period, especially for smaller banks.The refereeing process of this paper was handled by J. van den Broeck.  相似文献   
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