运输服务业中基于期权的存量控制方法研究

将期权思想引入运输服务业的存量控制策略中,构建了基于期权的存量控制模型,应用买入期权召回已售出的产品,而卖出期权则被用来在最后销售阶段出售低价产品,并通过算例对模型进行了验证.该基于期权的存量控制方法的灵活性,不但减少了超售赔偿成本、忠诚度成本,降低了空座率,并且提高了当需求足够多时服务支付意愿高的顾客的可能性,从而能较大程度地提高运输服务企业的总收益.     

我国农业跨区域产业化经营运作探讨

跨区域农业产业化经营是促进形成区域比较优势、合理分工与优化农业资源配置的重要途径。通过对浙江台州农业跨区域产业化经营的考察,发现该区域所形成的一些经营模式与经验值得借鉴。在此基础上,总结了我国农业跨区域产业化经营过程中存在的问题,提出了一些应对我国农业跨区域产业化经营的对策。     

“工学交替、双向参与”的实践教学基地建设——以高专酒店管理专业为例

酒店管理专业实践教学是培养学生职业能力的根本保证和学生就业、职业拓展的必要手段。本研究在校企共建实习教学基地并开展工学交替的模式下,坚持以学生为中心、学校为主导、企业为主体,从立足职业岗位需要、严把实践关键环节、严格组织实施、突出职业能力培养及对接职业考核标准等入手,通过构建四层四步递进式的实践训练体系、规范实习教学流程、加强实习过程管理、强化专业实习指导及实施全程考核评价等措施,建立互利互惠、优势互补、共同发展的学校、酒店、学生三赢的驱动机制。     

统计调查数据的全面质量管理

本文借鉴全面质量管理体系的概念,综合分析贯穿统计工作整个流程的统计调查数据质量管理的要素及作用。本文重点讨论了全面质量管理的流程和重点工作的布局;结合统计信息化的建设,特别讨论了相关工作规范、应用软件的作用,以及数据资源的建设和利用。     

有限数据下Lee-Carter模型在人口死亡率预测中的应用

Lee-Carter模型是当今世界上最流行的死亡率建模与预测模型,传统的Lee-Carter模型在样本量很大时才能得到较好的效果,而中国的死亡率数据量较少,且部分年限的数据缺失,从而难以达到较好的预测效果。本文基于Li等(2004)提出的有限数据死亡率建模方法,同时考虑样本量不足的影响,采用韩猛等(2010)提出的“双随机过程”建模,构建了有限数据下中国人口死亡率的预测模型,并用于对未来死亡率变动趋势和人口寿命的预测,最后将预测结果与保险公司采用的死亡率改善因子以及社会养老保险个人账户中采用的计发月数进行对比分析,给出了若干相关结论和有关死亡率风险管理的建议。     

对“经营城市”与“城市经营”的再思考——以农村城镇化进程中的依法规划为视角

“经营城市”是对“城市经营”的狭义理解,是资金导向型的城市经营,在我国,“经营城市”的提出有其特殊的时代背景和必然性,但是要实现城市的可持续发展,必须正确理解城市经营.以城乡规划为代表的行政规划与城市经营本应是相互协调发展的关系,但是在我国却经常表现为“经营城市”过程与城乡规划相分离,或者城乡规划因“经营城市”的需要而屡被修改,要改变这种状况不仅需要将“经营城市”还原为“城市经营”,同时也要对我国的城乡规划理念和相关制度进行一番改进.     

新时期军休服务管理规范化研究

军休服务管理是党和军队工作的重要组成部分。自改革开放以来,国内外环境发生巨大变化,给新时期军休服务管理提出了新挑战。本文通过分析出现的原因,提出相应对策。     

Search for Alternatives and Collaboration with Incumbents: Two-Sided Sourcing Behavior in Business Markets*

Sourcing strategies in business markets have been considered separately and the practice of two-sided sourcing behavior—engaging in search for alternative suppliers and collaboration with an incumbent supplier—has not been examined. To fill that gap, we first identify boundary conditions under which the poor performance of an incumbent supplier intensifies an original equipment manufacturer's (OEM) search and collaboration. Then, we examine how an OEM's two-sided sourcing behavior influences one of the critical elements of sourcing performance: the responsiveness of the incumbent supplier. Our proposed hypotheses were tested with data from a national survey of 539 OEM purchasing managers in the Japanese electronics industry. The analysis results indicate three main findings. First, two environmental conditions—pace of technological change and volume uncertainty—have contrasting influences on the link between incumbent supplier performance and an OEM's search and collaboration. While uncertainty from the upstream channel (pace of technological change) enhances an OEM's search and collaboration, uncertainty from the downstream channel (volume uncertainty) lowers an OEM's search and collaboration. Second, an OEM's dependence on its incumbent supplier has differential effects: an OEM reduces search as its dependence on incumbent supplier increases, while it enhances collaboration as its dependence on incumbent supplier increases. Third, while search alone has a negative effect on responsiveness of an incumbent supplier, engaging in two-sided sourcing behavior (i.e., combining search with collaboration) has a positive effect on responsiveness of the incumbent supplier.     

Pooling Data Across Transparently Different Groups of Key Informants: Measurement Equivalence and Survey Research*

Survey research is often deployed in the study of situational issues facing organizations and functions within organizations. One particular survey research approach can be described as follows: (1) survey questionnaires involving perceptual questions about a situational issue are administered to key informants, one key informant per unit of analysis; (2) key informants vary in a transparent manner across units of analysis such that groups of these key informants are discernible; and (3) perceptual responses, after data collection, are then pooled to create a single larger data set for subsequent statistical manipulations. In this methodological note, we draw attention to this particular survey research approach and ask the question: When is it appropriate to pool data provided by key informants with transparently different demographics across units of analysis so as to create a single larger data set for statistical manipulations? We use a simple example and data from a published study to motivate the relevance and gravity of this methodological question. Offering the concept and empirical assessment of measurement equivalence as the answer to this methodological question of data pooling, we prescribe and demonstrate, with the total quality management→customer satisfaction relationship, the procedural steps for evaluating the seven subdimensions of measurement equivalence. In conclusion, we highlight methods that should be adopted, before data collection, to minimize the risk of violating measurement equivalence. After data collection and for the instances when the empirical assessment for measurement equivalence advises against pooling of such data, we also offer suggestions for analyzing such data and presenting associated statistical results.     

住宅小区物业管理的困境与相关法规的完善建议——基于自身经验和法律实践的考察

物业管理面临许多困境,有组织成立并运作业主大会、业主委员会实践经历的人对此有更深认识。在业主、物业公司、开发商(建设单位)及政府部门的利益和权能角力中,业主方最为势弱。除了政府相关部门、街道办和居委会等应当依法依职能给予业主更多支持和帮助外,更为重要的是,从法律设计上要大幅修正《物业管理条例》及相关的一系列法律法规:允许多种形式的物业管理模式存在;重新设计前期物业管理制度,要求开发商承担更多前期物业管理责任;明确业主大会和业主委员会法律地位,赋予其明确的民事主体地位;调整街道办、居民委员会等机构在物业管理中的职能。法规的修正要能让业主便于召开和运行业主大会及业主委员会,使广大业主能够更高效、便捷地实现自己物业管理自治权利和相关物权权利。