含跳跃过程单因子利率模型的估计——基于中国国债回购利率的实证分析

在CKLS模型的基础上,我们提出了一个加入跳跃过程的单因子利率期限结构模型。通过对我国国债回购利率的实证检验,发现加入跳跃过程后,模型不但能更好地拟合实际数据．而且揭示了利率均值回复和水平效应的部分原因,从而增强了模型的解释能力。     

国家创新型城市对属地创新能力影响效应评估——政策动态过程与政企互动视角

选取2003-2016年城市数据样本,基于国家创新型城市分批次确立的特性,采用渐进双重差分模型、固定效应双重差分模型和处理效用双重差分模型,研究国家创新型城市对属地创新能力的整体效应、长期动态效应和批次效应。结合城市创新微观主体构成特性,分析属地国家创新型企业政策及企业类型异质性对属地创新能力的影响。结果显示:国家创新城市对属地创新能力提升在长短期均起到正向促进作用,且越早确立的城市对属地创新能力提升的作用效果越显著;国家创新型企业政策对城市创新能力提升起到正向调节作用,且企业集团作用大于上市公司和一般企业。最后,提出创新型城市建设相关政策建议。     

农药企业社会责任指标体系与评价方法

企业社会责任评价体系是企业履行社会责任的指南和准则,是引导和规范企业行为的信息工具,是农药企业社会责任从定性研究到定量评价、从理论到实践的桥梁和纽带。本文在构建指标体系原则指导下,设计了农药企业社会责任综合评价指标体系,从经济效益、创新能力、产品质量、售后服务、环境保护、员工权益、社区关系和慈善公益八个方面设计指标反映农药企业社会责任评价所包含的主要内容,并利用层次分析法确定了不同子目标和指标的权重,同时就企业间横向比较和单一企业纵向比较两种情形,分别给出了社会责任综合评价的方法。     

借鉴美国经验规范和发展我国货币市场基金

美国货币市场发达的主要原因在于可供交易的货币市场工具丰富,结构层次化、利率市场化,参与广泛等。我国货币市场规模小、品种单一,市场基础设施不完善,缺少相应的组织结构和制度保障,与美国货币市场化相去甚远。应借鉴美国的经验发展我国货币市场基金,加强货币市场基础设施建设,创新金融产品,加强货币市场基金风险管理,真正发挥货币市场基金作为现金管理工具的功能。     

一体化管理体系实施策划的过程及其主要内容

当前,企业正迫切需要建立一个综合性的管理体系,以期在满足各个标准的基础上实现组织整体的发展目标。本文对一体化管理体系(IMS)的实施策划过程及其主要内容进行探讨,旨在为企业建立一体化的管理体系提供参考。     

对赌协议、利益不一致与企业创新投入

应用跳跃变化下的几何布朗运动模型，从VC投资者与企业家间利益差异角度探讨企业签订对赌协议对创新支出影响的作用机制。结合新三板创新型公司数据，手动搜集2010-2018年VC参与的新三板公司融资事件，运用PSM匹配方法进行实证检验。结果表明，签订对赌协议抑制企业创新支出，且对赌期间业绩目标更高、VC占股较高时对创新投入的负向影响更明显。企业在对赌期间面临着巨大的业绩压力，签订对赌协议加大了VC与投资者间利益不一致，减少创新支出能够缩小二者间不一致区间。断资比例低对于对赌抑制创新起到缓解作用，即断资点越低，对赌抑制创新的作用越弱。     

Evaluating the impact of virtualization characteristics on SaaS adoption

Software as a service (SaaS) is a service model in which the applications are accessible from various client devices through internet. Several studies report possible factors driving the adoption of SaaS but none have considered the perception of the SaaS features and the organization’s context. We propose an integrated research model that combines the process virtualization theory (PVT), the technology-organization-environment (TOE) framework and the institutional theory (INT). PVT seeks to explain whether processes are suitable for migration into virtual environments via an information technology-based mechanism as SaaS. The TOE framework seeks to explain the effects of the intra-organizational factors, while INT seeks to explain the effects of the inter-organizational factors on the technology adoption. This research addresses a gap in the SaaS adoption literature by studying the internal perception of the technical features of SaaS and technology, organization, and environment perspectives. Additionally, the integration of PVT, the TOE framework, and INT contributes to the information system (IS) discipline, deepening the applicability and strengths of these theories.     

Project Ranking in Petroleum Exploration

Abstract

Project ranking based on project value is an essential management task for organizations that face resource bottlenecks. Project value focuses on the hard elements of projects that can be expressed in monetary terms. In the petroleum exploration business, however, there is also soft information, like effects on corporate liquidity, advantages of compliance with the strategic goals, or learning potential and organizational development, which may change the ranking hierarchy. The aim of this research is to provide a solution for incorporating industry-based selected soft data in the project ranking process. The process is illustrated with a case study. We took the structured system of criteria identified from the petroleum industry.     

A DISPLACED POISSON PROCESS APPLIED TO SCREENING FOR BREAST CANCER EN STRATIFIED SAMPLES WITH FALSE NEGATIVES*

A displaced Poisson process model allowing for stratified populations and “false negatives” is presented for describing the progress of certain chronic diseases. This model, which builds on earlier work by the authors, allows for the simple estimation of various parameters and distributions of interest in screening. A Monte Carlo simulation study illustrating and partially verifying the model predictions is given.     

基于价值工程的城市基础设施投资效果评价研究

以北京市为例构建了城市基础设施整体投资效果评价模型:首先通过功能分析构造城市基础设施投资效果评价指标体系;接着利用网络层次分析法,借助于Super Decision软件计算出各指标的权重;最后利用价值工程法计算城市基础设施投资效果值。本模型实现了主观分析和客观分析、定性分析与定量分析的结合,并为定量化分析城市基础设施这类复杂的社会经济问题提供了借鉴思路。