Sense of coherence and ill health among the unemployed and re-employed after closure of an assembly plant

The aim of this study was to investigate the relationship between employment status, ill health and sense of coherence(SOC). A cross-sectional sample of the former workers at the closed down Volvo Kalmar plant in Sweden was used. A questionnaire was mailed to all identified subjects 2 years after the closure of the plant. Responses were obtained from 344 persons, of whom 173 were re-employed and 92 were unemployed. They answered the questionnaire anonymously on background variables, SOC and ill health (physical and psychological symptoms). A notable difference was found between the re-employed and unemployed, where the unemployed reported symptoms significantly more often as well as a significantly weaker SOC. A main finding in a four cell model indicated that unemployment had a rather low impact on symptoms in the presence of a strong SOC. Structural equation modelling (SEM) was performed with simultaneous analysis of the unemployed and reemployed. The SEM analysis indicated that SOC seemed to have a greater impact on psychological symptoms among unemployed compared with re-employed persons. However, it should be noted that the present study does not allow for the determination of cause-effect relationships.     

单发线性结构突变对DF单位根检验的影响分析—“Perron现象”的进一步研究

 “Perron现象”是指当真实的数据生成过程为带有结构突变的（趋势）平稳过程时，传统的DF单位根检验易将其误判为单位根过程。本文考虑了水平突变、截距突变、斜率突变以及截距与斜率双突变等四种突变情形下DF统计量的检验功效，推导了前两种突变情形下DF统计量的渐近分布，并对四种突变情形下DF统计量的有限样本性质进行了探讨。本研究是对“Perron现象”的进一步深入分析，也是对DF单位根检验的进一步补充和完善。     

一类新的数据变换及其对提高灰预测精度的有效性研究

提出了经过非负函数cg(x)+d变换来提高GM(1,1)模型的预测精度,并从理论上证明,这类变换为级比偏差压缩变换,保证了数据变换后的序列有非负上凹的特性,还原后的误差不会增大等性质,并通过实例对比说明了这种变换的有效性。     

A short table for computing normal orthant probabilities of dimensions 4 and 5

A short of the quadravariate normal orthant probability P ₄ is presented which, except for near singular correlation matrices, is generally accurate to 7+ significant digits. Since the quinvariate orthant probability P ₅is expressed in terms of five copies of P ₄, such a table is also useful for computing P ₅     

Leech偏离类型述评

阐释了英国Leech对偏离现象所总结的九种类型.从功能主义的角度指出了Leech分类中存在的缺陷缺乏统一的理论模式,划分时有遗漏和重复的现象.最后提出偏离研究的走向--功能文体学.     

编辑的认知偏差与矫正

受社会和自身的各种因素影响,编辑在职业认同、审稿和编稿等方面常常存在着这样或那样的偏差。这些偏差既影响了编辑工作的有效运转,也影响了编辑工作者自身的发展与提高。矫正这些偏差,编辑工作者需要树立敬业爱业精神、创新精神,确立编辑学者化意识及客观、公正、平等、质量第一意识等。     

府际关系视角下区域环境政策执行偏差研究 ——基于博弈模型的分析

区域环境政策执行对改善环境质量、推进生态文明建设意义重大。基于府际关系视角,通过构建三个博弈模型,对区域环境政策执行过程中的政府行为进行分析。研究发现:在区域环境政策执行过程中,从横向府际关系来看,地方政府之间存在"共谋行为",负面的"共谋行为"会导致政策执行出现偏差;从纵向府际关系来看,行政发包制的政策执行机制,在以经济增长为中心的政治锦标赛背景下,会造成政策执行的"囚徒困境";从时间维度上看,中央政府的监管举措是约束地方政府政策执行偏差的必要条件。为此,地方政府间应增强互信与信息共享,中央政府必须创新政策执行机制、政绩考核机制、激励机制、问责机制和协调机制,建立社会监督体系,推进区域环境治理的技术创新。     

中国通货膨胀预期的结构和持久性

本文通过改进的预期通货膨胀率模型,将城镇居民调查问卷中未来物价变动预期的定性数据,转换为有效的预期通货膨胀率。同时,本文对通货膨胀预期的性质进行了结构性分析,结果表明,核心通货膨胀内涵下的通货膨胀预期变动符合理性预期假说,食品价格内涵下的通货膨胀预期变动更具备适应性预期的特点。通货膨胀预期的持久性较差,实际核心通货膨胀对通货膨胀预期不具备持续影响,而来自食品因素的实际通货膨胀对通货膨胀预期有持久的影响,但通货膨胀预期对实际通货膨胀的反馈效果并不稳定。因此,在充分重视核心通货膨胀的变动的基础上,货币政策的持续性和稳定性显得尤为重要。     

Internal and External Integration for Product Development: The Contingency Effects of Uncertainty,Equivocality, and Platform Strategy

Effective product development requires firms to unify internal and external participants. As companies attempt to create this integrated environment, two important questions emerge. Does a high level of internal integration lead to a higher level of external integration? In the context of product development, this study considers whether internal integration in the form of concurrent engineering practices affects the level of external integration as manifested by customer integration, supplier product integration, and supplier process integration. External integration, in turn, may influence competitive capabilities, namely product innovation performance and quality performance. Second, using contingency theory, do certain contextual variables moderate the linkages between integration strategy (external and internal) and performance? Specifically, this study considers whether uncertainty, equivocality, and platform development strategy change the relationships among internal integration, external integration, and competitive capabilities. Data collected from 244 manufacturing firms across several industries were used to test these research questions. The results indicate that both internal and external integration positively influence product innovation and quality and ultimately, profitability. With respect to contingency effects, the results indicate that equivocality moderates the relationships between integration and performance.