基于个性化需求的产品竞争供应链结构选择

基于"制销分离"与"定制一体"两种结构选择,构建个性化产品供应链处于非竞争与竞争环境下的博弈模型,在引入一个实际案例的基础上,运用算例仿真比较分析两种运营模式下的供应链运作策略和盈利差异。结果显示：与制销分离结构相比,个性化产品供应链选择定制一体结构,有利于匹配产品个性化制造、提升产品个性化水平和市场需求、增加供应链的期望收益;个性化产品供应链选择制销分离结构时,适度的批发价格激励能够提升产品个性化水平、更好满足消费者个性化需求、改善供应链的运营绩效,分销商适度让利加大批发价格激励力度可显著促进产品个性化制造互动、提升产品个性化水平;竞争将消减个性化产品供应链的运营绩效,但选择定制一体结构可显著提升竞争力。     

中国智能经济的涌现机制

我国智能经济的发展内生于经济转型升级过程中创造的智能化需求。与AI 1.0不同,新一代人工智能(AI 2.0)不再是简单用计算机模拟人的智能,而是基于网络空间发展的数据智能,即智能机器、人和网络相互融合的智能系统。智能经济是以数据和计算为“关键生产要素”的新经济形态,包括人工智能的产业化和产业的智能化过程中创造的新产品、新技术、新模式和新业态。互联网,尤其是移动互联网发展中创造出的数据生态优势是中国人工智能科技产业发展的前提和基础。在拥有数据生态优势的条件下,强烈的需求牵引、产学研协同创新、创新生态系统的高度开放性和核心产业部门与融合产业部门的融合发展,共同构成了中国智能经济发展的关键机制。     

Reciprocal relationships between psychosocial work characteristics and sleep problems: A two-wave study

Sleep problems are common and impair the health and productivity of employees. Work characteristics constitute one possible cause of sleep problems, and sleeping poorly might influence wellbeing and performance at work. This study examines the reciprocal associations between sleep problems and psychosocial work characteristics. The participants were 1744 full-time employed individuals (56% women; mean age 38 years in 2007) from the Young Finns study who responded to questionnaires on work characteristics (conceptualised by the demand–control model and effort–reward imbalance model) and sleep problems (Jenkins Sleep Scale) in 2007 and 2012. Cross-lagged structural equation models are used to examine the associations. The results show that low control and low rewards at baseline predicted sleep problems. Baseline sleep problems predicted higher effort, higher effort–reward imbalance, and lower reward. Sleep problems also predicted lower odds for belonging to the low (rather than high) job strain group and active jobs group. The association between work characteristics and sleep problems appears to be reciprocal, with a stressful work environment increasing sleep problems, and sleep problems influencing future work characteristics. The results emphasise the importance of interventions aimed at both enhancing sleep quality and reducing psychosocial risks at work.     

A shelf-space optimization model when demand is stochastic and space-elastic

The more customer demand is impulse-driven, the more it is space-dependent and the more it is subject to variation. We investigate the corresponding problem of retail shelf-space planning when demand is stochastic and sensitive to the number and position of facings. We develop a model to maximize a retailer׳s profit by selecting the number of facings and their shelf position under the assumption of limited space. The model is particularly applicable to promotional or temporary products.We develop the first optimization model and solution approach that takes stochastic demand into account, since the current literature applies deterministic models for shelf-space planning. By the means of an innovative modeling approach for the case with space- and positioning effects and the conversion of our problem into a mixed-integer problem, we obtain optimal results within very short run times for large-scale instances relevant in practice. Furthermore, we develop a solution approach to account for cross-space elasticity, and solve it using an own heuristic, which efficiently yields near-optimal results. We demonstrate that correctly considering space elasticity and demand variation is essential. The corresponding impacts on profits and solution structures become even more significant when space elasticity and stochastic demand interact, resulting in up to 5% higher profits and up to 80% differences in solution structures, if both effects are correctly accounted for. We develop an efficient modeling approach, compare the model results with approaches applied in practice and derive rules-of-thumb for planners.     

中国地方NGO生成机制的制度分析

地方NGO作为一种具体制度安排,其生成机制主要是在外在制度环境的作用下,以潜在利益为基本诱因,外在制度需求与内在制度供给相互契合推进,从而激励地方公民合作创设NGO制度安排的复杂过程。这是中国地方NGO生成的简要逻辑。从制度需求与制度供给的视角分析,在中国地方NGO的生成机制中,国家与市场对NGO制度安排的供给、市民集体行动的理性选择、地方制度转型的适应性安排、地方政府之间的制度竞争、地方知识精英的主导性介入与网络等科学技术进步的推动是六个关键性因素。特别是国家与市场的博弈过程与中国地方NGO的发展壮大过程相伴相生。分析中国地方NGO的生成机制,可以窥见中国公民社会的生长与发展轨迹。     

启动农村消费的障碍及消除障碍的路径选择研究

消费是拉动内需,推动经济持续、健康发展的不懈动力,然而现阶段我国居民消费对GDP增长的促进作用较弱,尤其是农村消费,但由于受收入、物价、市场发达程度等因素的制约,农村消费长期以来一直被压制.采用定量、定性相结合的分析方法,通过构造数量模型分析影响消费的主要因素及影响程度,在此基础上重点对影响农村消费增长的原因进行分析,并提出相应的解决措施.     

论图书馆的信息推送服务

信息推送服务是一种个性化的主动信息服务,图书馆在服务过程中必须贯彻以人为本、主动服务、一站式服务、个性化服务理念;网络环境下,基于RSS的信息推送模式比较好的解决信息推送的技术手段,图书馆根据学校的特性选择信息,建立用户需求库、信息资源库,定制用户界面并协同数据库完成信息推送。因此,以用户为中心的信息推送技术必将成为未来信息获取技术的一个重要发展方向。     

土地流转、资本兼并与扩大内需

立足于我国“三农”问题的根源性问题——土地问题,关注党的十七届三中全会提出的土地经营权流转问题,分析土地经营权流转的意义,主要在于土地、资本、劳动这三个基本生产要素的激活,盘活土地资源,引入非农资本,释放劳动力资源。同时,在土地流转过程中要警惕资本兼并问题;要循序渐进,谨慎推进土地流转。     

将审计风险理论引入内部审计实践

审计风险 ,是指会计报表存在重大错报或漏报 ,而注册会计师审计后发表不恰当审计意见的可能性。在审计界审计风险日益得到认识和重视 ,内部审计人员有责任探究审计风险理论 ,充分认识审计风险的概念、特征及其产生的原因 ,探索审计风险的防范措施 ,并将其运用到内部审计实践当中 ,建立控制审计风险体系 ,从而达到规避审计风险 ,提高审计工作质量 ,巩固内审部门地位的目的     

当前经济形势下财政货币政策调控的重点

现阶段我国宏观经济运行中,一方面存在着通货膨胀压力,另一方面,社会总需求结构失衡严重,消费、投资、出口之间的比例关系极为不协调。经济失衡的复杂性,使财政政策与货币政策的协调配合成为我国宏观调控面临的难题之一。因此,面对新的形势,确定当前宏观调控的重点,提高财政政策和货币政策配合的效果,通过两大政策的配合实现经济稳定增长、优化总需求结构。