留守儿童自尊、社会支持和学业成绩的关系

目的:分析留守儿童自尊、社会支持和学业成绩的关系。方法:采用自尊量表、领悟社会支持量表和学业成绩量表对275名留守儿童进行调查。结果:留守儿童自尊和社会支持得分男生均显著高于女生;留守儿童自尊、社会支持和学业成绩均显著正相关。结论:自尊和社会支持是留守儿童学业成绩的促进性因素。     

大一新生自尊、应对方式与学校适应状况的关系研究

目的:探讨应对方式在自尊与大学生学校适应之间的作用机制。方法:采用自尊问卷(SES),简明应对方式量表(SCSQ)和中国大学生适应量表(CCSAS),对重庆高校1176名大一新生进行抽样调查。结果:自尊和积极应对方式与学校适应各维度呈显著正相关,消极应对方式与学校适应各维度呈显著负相关,积极应对方式和自尊呈显著正相关,消极应对方式和自尊呈显著负相关。自尊和应对方式对学校适应起到共同的预测作用,除消极应对方式在自尊和满意度的回归分析中不存在显著的中介作用外,其他情况下,积极应对方式和消极应对方式在自尊和满意度的回归分析中均存在部分中介效应显著。结论:应对方式在自尊和大一新生学校适应之间起部分中介作用,即大学生的自尊可以通过应对方式对大一新生的学校适应产生影响。     

新生代员工自我差异及其工作态度和行为的关系模型构建

新生代员工已逐渐成为中国劳动力市场的主力军,他们重视自我实现和自我满足,存在职场中现实自我状态与理想自我状态、应该自我状态经常不一致的情形,对新生代员工自我差异实施有效管理具有重要意义。文章基于以往研究文献,构建了新生代员工自我差异及其工作态度和行为的关系模型,采用逻辑推导的方式对理论模型分析发现,虽然新生代员工的自我差异会降低其工作投入和帮助行为,但程序公平氛围和自尊会对其消极效应起着正向的调节作用。最后提出了对新生代员工自我差异的管理建议。     

Estimating features of a distribution from binomial data

We propose estimators of features of the distribution of an unobserved random variable W. What is observed is a sample of Y,V,X where a binary Y equals one when W exceeds a threshold V determined by experimental design, and X are covariates. Potential applications include bioassay and destructive duration analysis. Our empirical application is referendum contingent valuation in resource economics, where one is interested in features of the distribution of values W (willingness to pay) placed by consumers on a public good such as endangered species. Sample consumers with characteristics X are asked whether they favor (with Y=1 if yes and zero otherwise) a referendum that would provide the good at a cost V specified by experimental design. This paper provides estimators for quantiles and conditional on X moments of W under both nonparametric and semiparametric specifications.     

The impact of the ‘Girls on the Move’ Leadership Programme on young female leaders’ self-esteem

Using findings obtained from an evaluation of the ‘Girls on the Move’ Leadership Programme in Scotland, this paper assesses the impact physical activity leadership courses and leading physical activities had on young women’s global self-esteem. While research has shown that engagement in youth development activities can contribute to an individual’s self-esteem, less is known about the impact of youth leadership on young people’s self-esteem. Based on pre-course and six-month follow-up surveys and using the Rosenberg self-esteem scale, it was found that increases in global self-esteem scores were highest in those that maintained an involvement in leading activities. The self-esteem of those attending training but not taking on leadership responsibilities remained largely unchanged. The findings indicate that youth leadership development has the power to make important contributions to the development of young people and youth development professionals should seek to provide meaningful leadership experiences for young people.     

美国风险收费制度对我国的启示

美国风险收费制度是根据案件的具体结果来支付律师费用的一种制度,案件胜诉则支付约定的费用,反之则不需或少付律师费用。虽然对于我国是否可采纳风险收费制度有不同的观点,但由于风险收费制度有利于解决我国目前面临的诉讼难的困境,以及对公益诉讼有不可低估的意义,因而在一定限度内采用应该是可行的。     

The Effect of Organization-Based Self-Esteem and Deindividuation in Protecting Personal Information Privacy

In this research we apply the Theory of Planned Behavior (TPB) to study decisions related to information privacy protection. A TPB-based model was proposed to investigate whether organization-based self-esteem and perceived deindividuation can be employed to measure the strength of the perceived behavioral control construct. In addition, we examined if the addition of a causal path linking subjective norms to attitudes and another causal path linking organization-based self-esteem to subjective norms enhanced our research model's predicting power. Our study shows that information systems (IS) professionals' intentions to protect personal information privacy are influenced by their attitudes, subjective norms, perceived deindividuation, and organization-based self-esteem. It further shows that attitudes are influenced by subjective norms, which, in turn, are influenced by organization-based self-esteem.     

On the range of options prices

In this paper we consider the valuation of an option with time to expiration and pay-off function which is a convex function (as is a European call option), and constant interest rate , in the case where the underlying model for stock prices is a purely discontinuous process (hence typically the model is incomplete). The main result is that, for “most” such models, the range of the values of the option, using all possible equivalent martingale measures for the valuation, is the interval , this interval being the biggest interval in which the values must lie, whatever model is used.     

Distribution-free estimation with interval-censored contingent valuation data: troubles with Turnbull?

Contingent valuation (CV) surveys frequently employ elicitation procedures that return interval-censored data on respondents’ willingness to pay (WTP). Almost without exception, CV practitioners have applied Turnbull’s self-consistent algorithm to such data in order to obtain nonparametric maximum likelihood (NPML) estimates of the WTP distribution. This paper documents two failings of Turnbull’s algorithm; (1) that it may not converge to NPML estimates and (2) that it may be very slow to converge. With regards to (1) we propose starting and stopping criteria for the algorithm that guarantee convergence to the NPML estimates. With regards to (2) we present a variety of alternative estimators and demonstrate, through Monte Carlo simulations, their performance advantages over Turnbull’s algorithm.

公益林生态效益价值居民支付意愿实证分析——以贵阳市为例

以贵阳市公益林为研究对象,采用条件价值评估法（CVM）,通过设计问卷、调查实施,对贵阳市居民公益林补偿的支付意愿（WTP）及影响因素进行了分析。结果显示：（1）73.6%贵阳市居民家庭对公益林生态效益价值有支付意愿,平均意愿支付额为每户家庭每年人民币213.96元;（2）支付意愿受社会经济因素综合影响,其中年龄、收入水平及环境关注态度对支付意愿具有显著影响,是影响支付意愿的主要因素。在对居民支付意愿影响因素进行分析的基础上,提出了一些建议性政策。