Locally minimum variance unbiased estimator in a discontinuous density function

The exact forms of the locally minimum variance unbiased estimators and their variances are given in the case of a discontinuous density function.     

裂变营销属性：电商平台的创新、违法与传销犯罪

在“流量经济”与“用户思维”加持下,传销形态已发生异变。对于裂变营销属性的认定,应当通过非法传销的实质解读,提炼出传销的元模型,将具有非法传销外观的营销创新予以剥离,形成“拉人头+团队计酬”以及“收取入门费+团队计酬”的二元类型。同时,借助缓和的违法一元论,透视裂变营销中传销违法向传销犯罪的转化逻辑,明确二者之间“质”与“量”的区别。当本罪与诈骗犯罪或集资犯罪发生竞合时,应当充分发挥想象竞合的“明示机能”实现全面评价,并择重处罚。     

会计人员心理与会计违规行为——一个基于治理会计违规行为的分析视角

本文运用管理心理学理论,对会计人员心理与会计违规行为之间的深层内涵进行了分析,揭示了会计违规行为是外部环境和会计人员主观心理相互作用的结果。并指出治理会计违规行为的方法是减轻外部环境给会计人员造成的心理压力及对其各种需要的威胁,同时,还要重视会计人员正确价值观的塑造和健康心理的培育。     

Comparing Environmental Policy Instruments in the Presence of Imperfect Compliance – A Case Study

In this paper, we aim to include rule making, implementation, monitoring and enforcement costs into the cost comparison of policy instruments. We use a simple partial equilibrium model and apply it to the textile industry. The model includes discrete abatement functions and costly monitoring and enforcement. The case study uses individual firm data to simulate the differences in abatement costs and compliance decisions between firms. We compare combinations of regulatory instruments (emission taxes, emission standards and technology standards) and enforcement instruments (criminal fines, civil fines and transaction offers). We show that the inclusion of information, monitoring and enforcement costs indeed alters the relative cost efficiency of the different instruments.     

Simultaneous Estimation of Legal and Illegal Supply and Demand: The Case of Motion Pictures

Prior research into illegal goods has typically looked at one-way effects, such as illegal demand on legal demand. This research investigates a previously unexamined component of the market, illegal supply. The authors examine the supply and demand of legal goods and their illegal counterparts as a market system of four interdependent components. This research makes theoretical and empirical contributions by evaluating illegal supply in this system. Simultaneous equations estimate each market component on the others using data from the motion picture industry. The results find illegal supply has no effect on legal supply (movie screens), positive effects on illegal demand (piracy downloads), and some effect on legal demand (box office revenues). Timing effects highlight this: illegal supply has a positive effect on legal demand during a film’s opening week, but no effect post-launch. The other market components have positive effects on illegal supply (except legal supply, which is negative in the opening week). Additionally, illegal demand has a negative effect on legal demand during the opening week of release, but not in the subsequent weeks. This finding alleviates prior research tension as to whether piracy helps or hurts legal sales, as omitting illegal supply could result in biased estimates.     

Safety concerns related to modular/prefabricated building construction

The US construction industry annually experiences a relatively high rate of fatalities and injuries; therefore, improving safety practices should be considered a top priority for this industry. Modular/prefabricated building construction is a construction strategy that involves manufacturing of the whole building or some of its components off-site. This research focuses on the safety performance of the modular/prefabricated building construction sector during both manufacturing and on-site processes. This safety evaluation can serve as the starting point for improving the safety performance of this sector. Research was conducted based on Occupational Safety and Health Administration investigated accidents. The study found 125 accidents related to modular/prefabricated building construction. The details of each accident were closely examined to identify the types of injury and underlying causes. Out of 125 accidents, there were 48 fatalities (38.4%), 63 hospitalized injuries (50.4%), and 14 non-hospitalized injuries (11.2%). It was found that, the most common type of injury in modular/prefabricated construction was ‘fracture’, and the most common cause of accidents was ‘fall’. The most frequent cause of cause (underlying and root cause) was ‘unstable structure’. In this research, the accidents were also examined in terms of corresponding location, occupation, equipment as well as activities during which the accidents occurred. For improving safety records of the modular/prefabricated construction sector, this study recommends that future research be conducted on stabilizing structures during their lifting, storing, and permanent installation, securing fall protection systems during on-site assembly of components while working from heights, and developing training programmes and standards focused on modular/prefabricated construction.     

恶意挤占医保基金的经济学分析

导致医保基金存量减少的原因可以分为两类,一类由客观原因导致,并且难以避免,另一类是人为因素造成的恶意挤占医保基金的行为。针对后一种情况,从经济学角度,首先运用产权理论的观点来分析制度本身的缺陷,再通过建立两个博弈模型来分析当事人投机心理的形成过程,并提出相应解决措施。     

鄂西北某院患者输血知识认知情况及教育需求分析

目的:调查综合性医院患者对安全输血的认知情况,以便有针对性地开展培训,降低风险。方法:自行设计问卷,调查185名患者对安全输血的认知程度和需求。结果:患者对涉及输血不良反应、自体输血等内容的认知相当欠缺。结论:应当持续性的患者进行安全输血知识培训,切实保障输血安全。     

结合教学案例探析情境教学法在大学英语教学中的应用

本文首先探讨了情境教学法的理论依据、功能、使用原则和方法,然后结合教学案例和问卷调查重点分析了情境教学法在大学英语教学中的实际应用、教学效果以及在教学中需要注意的问题,认为情境性教学法能够提高学生的学习兴趣、学习效果和学习能力,是比较适合基于计算机网络和课堂的现代大学英语教学模式。     

《审计案例》课程教学改革初探

为了培养专业胜任能力强的审计会计人员,作为审计学中的重点实践课程--<审计案例>的教学改革已经势在必行.审计案例课程的改革必须摒除传统课程仅从课本上学习,依赖老师授课的平面性,创造仿真教学环境,将审计基础理论课程与审计案例课程的授课进度相结合,并引入"讨论式教学"的授课方式,激发学生的学习兴趣.同时利用角色扮演案例、自...