“互联网+”背景下,打造农特产品新型营销模式

在互联网兴盛的当代,电子商务成为新潮流,农民对于线上销售流程较为陌生,但消费者更倾向于线上买卖。打造农特产品新型营销模式,政府、企业、高校三主体参与建设,开展透明化生产+故事化销售,注重有爱消费+健康饮食,实现公众号+第三方小视频平台+农特产APP三位一体,促进企业发展、大学生创业、线上助农巧妙结合,从而推动经济收益与社会效益双提升。     

江苏省湿地的基本特征及保护

本文论述了江苏省湿地的基本特征,从可持续发展的角度,深入剖析目前湿地现状及存在问题,并提出了江苏省湿地生态系统保护利用的科学对策。     

高校旅游管理专业"饭店管理"实验教学模式的探讨

高等院校“旅游管理”专业开设的“饭店管理”实验是为了培养学生的动手能力和心智技能。通过分析当前高等院校“饭店管理”实验教学中存在的问题,讨论了多种实验类型和开放实验在“饭店管理”实验教学中的合理运用,以及如何通过延伸“饭店管理”实验提高教学质量。     

以城市为主导统筹区域经济协调发展

长期以来,我国的区域经济实际上是农村主导型的发展模式.现在,这种发展模式已经走到了尽头,必然要向城市主导型区域经济发展模式的转变.这就要求区域经济发展应以城市为重点,推进城市化的区域经济发展战略,以此为基础,构筑城乡一体化的城市经济圈,统筹区域经济协调发展.城市经济圈的形成应打破行政界限,顺其自然地构建城市经济圈,因地制宜地探索城市经济圈的发展道路,逐步提升城市经济发展水平,以城市为主导统筹区域经济协调发展.     

Testing for unit roots in time series models with non-stationary volatility

Many of the key macro-economic and financial variables in developed economies are characterized by permanent volatility shifts. It is known that conventional unit root tests are potentially unreliable in the presence of such behaviour, depending on a particular function (the variance profile) of the underlying volatility process. Somewhat surprisingly then, very little work has been undertaken to develop unit root tests which are robust to the presence of permanent volatility shifts. In this paper we fill this gap in the literature by proposing tests which are valid in the presence of a quite general class of permanent variance changes which includes single and multiple (abrupt and smooth-transition) volatility change processes as special cases. Our solution uses numerical methods to simulate the asymptotic null distribution of the statistics based on a consistent estimate of the variance profile which we also develop. The practitioner is not required to specify a parametric model for volatility. An empirical illustration using producer price inflation series from the Stock–Watson database is reported.     

Two-sample rank tests with truncated populations

LetX ₁,…,X _m andY ₁,…,Y _n be two independent samples from continuous distributionsF andG respectively. Using a Hoeffding (1951) type theorem, we obtain the distributions of the vector S=(S ₍₁₎,…,S _(n)), whereS _(j)=# (X _i ’s≤Y _(j)) andY _(j) is thej-th order statistic ofY sample, under three truncation models: (a)G is a left truncation ofF orG is a right truncation ofF, (b)F is a right truncation ofH andG is a left truncation ofH, whereH is some continuous distribution function, (c)G is a two tail truncation ofF. Exploiting the relation between S and the vectorR of the ranks of the order statistics of theY-sample in the pooled sample, we can obtain exact distributions of many rank tests. We use these to compare powers of the Hajek test (Hajek 1967), the Sidak Vondracek test (1957) and the Mann-Whitney-Wilcoxon test. We derive some order relations between the values of the probagility-functions under each model. Hence find that the tests based onS ₍₁₎ andS _(n) are the UMP rank tests for the alternative (a). We also find LMP rank tests under the alternatives (b) and (c).     

复杂系统理论在大型企业物流改革中的应用

大型企业的物流系统是一个复杂系统,但现在大型企业物流管理都是由该企业承担,已不适应日益开放与复杂的市场环境,必须进行改革。文章指出改革的出路是引入第三方物流,并采用复杂系统理论,阐述了必须渐进改革过程与竞争合作、达到多赢对策,及不断学习提高竞争力的策略。     

基于荣格个性类型的个性测量工具建构探索

在当前我国构建和谐社会的进程中,要求各类组织必须充分重视组织个体间的差异,有针对性地做好人力资源的配置和开发。运用实证研究方法,探索荣格个性类型在中国企业人群的因素结构,建构中国人职业个性测量工具(CVPS)。研究涉及的被试对象约2500人。结果表明:CVPS的效度和信度均较为理想,可将CVPS应用于员工心理档案创建等管理实践。     

知识型企业链级双轨激励模型探究

知识型企业组织结构依然存在的等级层次,不同层级的人需要不同而应采取异质激励,同一层级的人也因个体的差异也需要异质激励,而异质激励总的来说都归于物质轨道与精神轨道.据此构建出知识型企业链级双轨激励模型.     

风险投资的风险分担机制分析

风险投资的高风险性决定了建立投资风险规避机制的重要性。风险投资面临着技术风险、市场风险、资金风险、管理风 险和环境风险等风险类型,在此基础上需要制订规避投资风险的一系列策略。