基于平均余命的中国养老金个人账户缴费率研究

平均余命是影响个人账户缴费率的重要因素之一。在退休人口平均余命逐步延长的趋势下,现行缴费率下的个人账户养老金积累额不能满足退休人口平均余命期间的支付需求,不能保障基本生活需要。如果不能及时依据平均余命适当调整个人账户缴费率,退休人口将面临因长寿风险而陷入生活贫困的境遇。本文测算了平均余命提高条件下中国2000~2050年个人账户缴费率的上限值与下限值范围,分析了职工个人缴纳养老保险费的经济承受能力,并提出了若干建议。     

“交际能力”理论对外语教学的启迪

交际能力包括语言知识和能力、社会语言能力、语篇能力、应变能力.交际能力理论强调在教材中体现语言材料的真实性;强调整个语言教学应围绕交际过程展开,即利用各种教学手段创设生活、工作情景,把学生置于尽可能真实的语言环境中,使他们能身临其境进行交际,从而提高外语交际能力,达到外语教学的目的.     

弧底梯形断面在夹马口灌区续改工程中的应用

在原梯形断面上进行渠道改造,其断面形式应选择弧底梯形断面。弧底梯形断面具有:流速分布均匀,接近最佳水流断面;水力条件好,挟沙能力强;可有效控制基土冻胀,投资较小;施工进度快,质量能保证等优点。     

Safety Stock,Excess Capacity or Diversification: Trade‐Offs under Supply and Demand Uncertainty

Firms mitigate uncertainty in demand and supply by carrying safety stock, planning for excess capacity and diversifying supply sources. In this study, we provide a framework to jointly optimize these three levers in a periodic review infinite horizon setting, and in particular we examine how one can reduce inventory and capacity investments through proper diversification strategies. Observing that a modified base‐stock inventory policy is optimal, we find that the capacity‐diversification problem is well behaved and characterize the optimal mix of safety stock, excess capacity and extra number of supply sources. We find that higher supply uncertainty results in higher safety stock, more excess capacity, and higher diversification. But safety stock and diversification are non‐monotonic in demand uncertainty. Our results can be extended to situations in which suppliers are heterogeneous, and can be used to develop effective heuristics.     

淮南市生态足迹现状及发展对策研究

为了掌握淮南市生态可持续发展的现状,并采取针对性的管控措施,促进淮南市生态经济可持续发展,采用生态足迹模型对淮南市生态足迹的现状进行了研究.研究表明:2014年淮南市人均生态足迹为3.336 226Ha,人均生态承载力为0.315 205Ha,人均生态赤字为3.021 021Ha,淮南市当前的生态经济发展处在不可持续状态;为促进淮南市经济社会的可持续发展,应采取转变能源消费模式,保护自然资源,提高各类资源的生产效率,引导资金合理流动等措施.     

Understanding sex: the right to legal capacity to consent to sex

This article addresses the right to legal capacity to consent to sex of people with intellectual disabilities. Article 12 of the Convention on the Rights of Persons with Disabilities guarantees the right to legal capacity on an equal basis in all areas of life. This article discusses sex as an area of life in which people with intellectual disabilities are frequently not being granted legal capacity on an equal basis. The article examines current capacity to consent to sex law in Ireland, England and Wales in light of Article 12. It proposes an ‘agreement model’ as a potential alternative that would be Article 12 compliant.     

Configuration of flexibility strategies under supply uncertainty

In this paper, we study a buyer׳s configuration of flexibility strategies under supply uncertainty. His main supplier׳s production process is uncertain, and he can either choose pricing flexibility (setting prices depending on the available supply) or operational flexibility (requesting a contingent order from a backup supplier). As the buyer may or may not find a suitable contingent supplier ex post, we study two scenarios that the backup supplier׳s supply is infinite, and that this supply is random. We also include the factor that the main supplier may determine the wholesale price. We demonstrate that the adoption of flexibility strategies is controlled by threshold policies in different scenarios whether the main supplier determines the wholesale price or not. We also investigate how the buyer׳s attribute (finding a suitable contingent supplier) affects the configuration of flexibility strategies.     

从醉酒犯罪论我国原因自由行为之立法

通说认为,中国大陆刑法对原因自由行为理论仅在刑法第18条第4款上涉及。立法上,该条款不分情况的“一刀切”模式不符合法理和情理。立法的不完善直接导致司法实践中出现错误的处理思路,司法实务人员倾向于直接引用该条款追究行为人的完全刑事责任。以醉酒犯罪为切入口来探讨原因自由行为,重点针对司法实践中亟待解决的关键问题,借鉴域外关于自陷行为之立法例,探讨我国立法之困境,对其进行反思与完善,得出既适用于一般又考虑个别的“总则加分则”的立法模式。     

生态承载力调控下洞庭湖区域协调发展策略研究

运用生态承载力评价模型、响应模型和空间频数分异测度模型对洞庭湖区生态承载力进行时空分析,结果表明：近10年来洞庭湖区生态承载力整体上呈现“U”型变化趋势;空间格局上,从西南向东北依次呈现“较高—低—高—低—较高”的“W”字型格局;区域响应上,4种不同响应状态反映出县域经济发展、社会进步、资源利用和环境质量的协调性较差,生态系统潜在压力较大。因此,应创新体制机制,化解经济社会发展与生态系统承载之间的矛盾;加强生态系统调控和景观生态规划,维持生态系统的弹性力;转变产业发展模式,提高生态系统服务价值;树立以人为本、以生态为导向的发展观;抓住区域发展战略与政策的机遇,全面提高生态承载力。     

IT能力与市场响应性的关系研究

基于动态能力理论和能力层级观,提出IT能力(IT整合和IT重置)通过促进吸收能力来提高企业市场响应性.同时,市场动荡性也可能调节IT能力与吸收能力的关系.通过对203个样本的问卷调查,分析结果表明:吸收能力在两种IT能力和市场响应性之间都起到中介作用;市场动荡性正向调节IT整合与吸收能力之间的关系,而对IT重置与吸收能力间关系的调节效应不显著.