现代物流对循环经济的贡献与发展对策探析

现代物流产业是循环经济的基础与必要条件,二者相互促进共同发展。物流产业对循环经济发展在时间效应、空间效应、社会效应和产业结构等方面有着巨大的促进作用。而我国物流产业发展刚刚起步,还存在诸多问题,为此,从加强政策支持,完善管理制度,发展多种物流模式,加快基础配套设施建设,加大技术设备与信息网络建设投入,构建完善物流体系等方面提出加快现代物流产业发展的对策建议。     

城市社区邻里关系的空间效应

邻里关系与空间形式息息相关.我国当前的城市社区建设,应当充分发挥空间设置对邻里关系的促进作用.传统社区改造在保持公共空间的基础上,应加强空间私密性;新型社区在保证私密性的基础上,应强化公共空间的建设.     

Corporate social responsibility: attributions,loyalty, and the mediating role of trust

This study investigates whether consumers’ perceptions of motives influence their evaluation of corporate social responsibility (CSR) efforts. The study reveals the mediating role of consumer trust in CSR evaluation frameworks; managers should monitor consumer trust, which seems to be an important subprocess regulating the effect of consumer attributions on patronage and recommendation intentions. Further, managers may allay the negative effects of profit-motivated giving by doing well on service quality perceptions. On the other hand, appropriately motivated giving continues to positively affect trust regardless of the performance of the firm on service quality provision.     

基于HAR—RV模型的中国证券市场异质性研究

随着高频数据可以越来越方便的获得,过去的ARCH模型及GARCH模型已经不能满足高频数据研究的需要。相比于模型波动率,已实现波动率能够更直接、准确地描述波动率的特征。研究表明,已实现波动率具有长记忆特性,其解释之一即为异质市场假说,即市场中存在异质交易者。文章选取了HAR—Rv模型对已实现波动率进行建模,并且通过回归分析,证明了我国股票市场交易者存在异质性。     

一项关于价格水平决定的财政理论的实证研究

本文遵循Sala的五变量VAR方法发现,在绝大部分时间里,实际利率对一个标准差的实际税收正向冲击的反应为正,这就为价格水平决定的财政理论提供了来自中国的经验证据的支持。除此之外,与很多学者一样,本文还发现了实际税收冲击的非凯恩斯效应。     

基于调控方向差异的货币政策区域效应研究

实证研究结论表明:我国货币政策的作用真实表现为正向或负向货币供给冲击;正向或负向货币供给冲击对我国东部地区、东北地区、西部地区和中部地区的影响是不一样的,即存在紧缩性与扩张性货币政策区域效应;我国货币供给冲击是东部地区、东北地区和西部地区经济增长率的Granger原因,不是中部地区经济增长率的Granger原因;我国紧缩性与扩张性货币政策区域效应主要是与不同地区金融机构分布和货币政策传导渠道的不同有关。     

中国商品期货市场的假日效应研究——基于收益和波动的视角

为研究中国商品期货市场假日效应的存在性及其特征,本文从收益和波动出发,在构建学生分布随机波动模型的基础上采用贝叶斯MCMC模拟技术对中国铜、铝、橡胶、大豆、豆粕和小麦期货市场的假日效应进行了实证分析,研究结果显示:假日前和假日后信息对商品期货交易收益及其波动均具有显著的影响,对不同交易品种而言,其影响方向及影响程度均存在一定差异;更具体地,对各类假日分别进行分析发现,元旦、春节、劳动节和国庆节的假日前和假日后信息对商品期货收益及其波动均具有显著的影响,且比分类之前假日前和假日后信息的影响能力明显增强,其个性特征也更加突出。     

生产率与中国高技术企业出口相关性研究——基于异质企业贸易理论的视角

高技术产业出口近年来迅速增加,容易使人得出我国贸易结构升级,国际竞争力加强的结论。我国2008年近两万家高技术企业的微观数据分析表明企业出口与生产率呈现负相关关系,这一现象不符合异质企业贸易理论。研究发现企业性质、企业资本劳动比才是出口的主要影响因素。高技术产业中加工贸易企业的大量存在是造成其违反异质企业贸易理论的根本原因。     

The Effect of Behavioral Contagion and Tie-Strength on Calorie Intake in Food Courts

Major contributors to the obesity epidemic are societal and result from sedentary lifestyles and consumption of high-calorie diets. Previous studies suggest that food choice behavior is socially transmissible. Hence, knowledge of the impact of social influence on calorie intake is critical to improve the understanding about the outcomes of policies related to healthful diets. There is the need to analyze the influence of social networks on choosing food in a public place. Thus, we interviewed groups of food court patrons in an all-you-can-eat college dining hall. Results show individuals dining in a group with at least one obese group member are consuming more calories from high-calorie foods and fewer calories from low-calorie foods. Food-related interactions in a group influenced food consumption. Hence, dining with obese peers likely increases calorie intake.     

Neighbourhood Effects in Pesticide Use: Evidence from the Rural Philippines

This study investigates how pesticide use by neighbouring farmers affects a given farmer's pesticide use. Although it is common knowledge that pesticide use has spatial externalities, few empirical economic studies explicitly analyse this issue. Applying a spatial panel econometric model to plot‐level panel data for Bohol, Philippines, this study shows that pesticide use, especially for herbicides, is spatially correlated, although there is no statistically significant spatial correlation in unobserved shocks. This implies that farmers apply pesticides by referring to the behaviour of neighbouring farmers rather than responding directly to the intensity of their own infestation.