Net equity issuance effect in the UK

Net equity issuance (NEI) by firms has predictive power for US stock returns. This paper examines the NEI anomaly for UK stocks, using regression on firm characteristics and sorted portfolios with several factor models. The anomaly generalises to the UK only in part. We confirm the existence of a large NEI effect for small and midsize stocks, but not for large stocks. The repurchase effect, of positive abnormal returns following repurchases, is absent in the UK. We also find that the NEI effect in smaller stocks is not exploitable by investors, allowing for transaction costs.     

Reassurance or reason for concern: Security forces as a crisis management strategy

This paper examines effects of the deployment of security forces to a popular winter migrant destination faced with a unique humanitarian crisis situation. The study surveyed past winter migrants to the region to evaluate their perceptions regarding sociocultural, economic, and psychological impacts of security forces deployed to the region. In addition, this study evaluates the deployment's impact on satisfaction with life in the region, return intention and likelihood of recommending the region to others to find that perceived safety from the security forces significantly affected community factors and that satisfaction with life fully mediated community factor effects on destination loyalty. These finding significantly add to the limited research in crisis management response effects and substantiates the use of signaling and signal crimes perspective in managing crises.     

计算机网络发展存在的威胁及其解决策略

当前,在随着计算机网络时代不断的进步发展,而全球市场的信息化管理也已经逐渐成为发展的主要趋势,然而,由于计算机网络是一种联结形式的网络开放式、多样性,具有终端分布的不均匀性以及互连性等一些主要特征,从而就会导致网络极易受到威胁,因此,对于网络信息的保密性和安全性则是非常重要的一个问题。不管是在广域网中还是局域网中,人为因素或者是自然因素都会存在一定的潜在威胁。对此,为了计算机网络会有一个良好的发展空间就必须要提高它的安全管理措施,以全方位、多角度的对待各种潜在的威胁,从而保证网络信息具有保密性以及完整性。     

试论如何有效控制食品添加剂的安全问题

随着食品行业的逐渐发展,食品添加剂的安全性成为人们重点关注的话题,食品添加剂是食物的重要组成部分。近年来,食品添加剂中毒事件频频发生,在食品生产中非法应用食品添加剂会对人民群众的健康造成危害。相关部门应在正确认识食品添加剂的基础上,积极采取措施,减少食品添加剂的安全问题。     

Environmental concern and environmental behaviour among the Norwegian public

Current studies indicate that the most accurate predictor of actual buying behaviour is consumer attitudes (Glendon and McKenna, Human Safety and Risk Management , London: Chapman and Hall, 1995). This study seeks to investigate questions relating to the extent to which attitudes on safety and risk issues are critical to safety-related behaviour. The dispositional view of human behaviour implies behavioural consistency across different behaviours performed in different situations, as long as the behaviours are instances of the same underlying disposition. The present study tests this hypothesis in relation to health and environmental behaviour. Both direct and indirect effects are investigated. An additional aim was to test for gender differences as well as differences due to age and educational level. The results are based on survey data of a representative sample of the Norwegian population given self-completion questionnaires during the period 1997-98. A total of 1450 respondents replied to the questionnaire. Health attitudes and the Health Value Scale correlated strongly with health behaviour and environmental concern with environmental behaviour. Attitude towards illness prevention was important for both behavioural dimensions. Health behaviour influenced environmental behaviour in an indirect way, through health attitudes. The results imply that it can be useful to study dispositional concepts. When appropriately applied, they yield useful information. It is important to focus on specific attitudes and related specific behaviours in order to change behavioural practices. In addition, it seems possible to change environmental and consumer behaviour through changing health     

A review on research in transportation of hazardous materials

Incidents that involve transportation have the potential of causing significant damages to the affected communities due to the release of hazardous substances. Therefore, it is important to reduce their impact as well as the risk of their occurrence. In this paper we review recent research in the field of transportation of hazardous materials. Our work extends a previous review from 2007. Based on our analysis, we identify current trends and research gaps as well as relevant future research directions.     

Comparative wind farm planning on a high plateau: Dust dispersion as a sitting constraint

In the current paper, the wind potential of a relatively flat area in central Peloponnese in Greece has been studied. The chosen region was selected based on environmental criteria and the wind speed was correlated based on the measurements of three specific mountainous sites in the wider plateau area using a Wind Resource Analysis (WRA) modeling methodology. Digital elevation data sets were used for the modeling procedure together with the Wind Atlas Analysis Program for the correlation process and the basic aim was to evaluate and identify appropriate sites for wind farm development within the flat area and compare the estimated net power output with the net power output from mountainous sites in the wider central Peloponnese area. Dust dispersion mapping from mining operations in the area contributed also to defining the physical boundaries for wind farm development.     

转基因食品安全管理的现状及对策

本文对转基因食品进行了概述,并对当前转基因食品安全管理的问题、现状以及对策进行了分析,以期促进我国转基因食品安全工作更好地开展。     

Net entry behaviour in Greek manufacturing: consumer, intermediate and capital goods industries

This research explores the nature and causes of net entry of firms in three groups of Greek manufacturing industries–consumer, intermediate and capital goods. The research questions whether or not the determinants of net entry rates across sectors are different. Econometric analyses reveal that, indeed, there are significant differences in the determinants of net entry rates across industry groups, but also there is strong within-group correlation across sectors.     

中国主要农产品市场竞争力研究

农产品市场竞争力决定着农业和农村经济的发展。文章选用国际市场占有率、净出口指数、显示比较优势等指标测算中国主要农产品市场的竞争力,并对中国11种主要农产品竞争力在加入WTO前的1999年与加入WTO后农产品全面开放的2004年以及中日美三国进行了对比实证分析,并给出了提高中国农产品市场竞争力的措施。