能效改善与能源节约：助力还是阻力

研究目标：测算中国分行业的能源回弹效应与综合能耗系数。研究方法：通过编制含能源实物流量的价值型能源投入产出可比价序列表,测算出能源回弹效应与综合能耗系数,结合行业综合能耗情况分析了能源回弹效应的行业异质性。研究发现：各行业在能耗方面表现迥异,能源回弹效应也存在典型的行业异质性;中国整体经济能源回弹程度并不高,能效改善可以有效节约能源,但整体经济低能源回弹的表象也掩盖了部分行业能源效率无改善和高能耗行业高能源回弹的事实。研究创新：从系统与结构的视角审视了行业的综合能耗情况,并给出了一种基于能源投入产出表的能源回弹效应计算方法。研究价值：有助于提出整体经济结构优化与节能减排的行业政策。     

忠诚与集体行动的实现——以温州烟具协会的反倾销诉讼为案例

本文以公共物品的私人供给为例对集体行动的实现从忠诚的角度进行了分析.忠诚有利于集体行动的实现,并且这种实现是通过策略互动表现出来的.每个个体对自身组织的忠诚程度普遍较低有可能导致这个组织的集体行动的失败;反过来,每个个体对自身组织的忠诚程度普遍较高则有可能导致这个组织的集体行动的成功.即使异质性个体具有同样的忠诚程度,同样的忠诚程度也未必发挥同样的作用.     

知识异质性与知识创新绩效的关系研究

在界定知识异质性和知识创新绩效概念的基础上,基于相关研究文献,提出了知识异质性与知识创新绩效的关系假设,以企业研发团队为例,通过对有研发团队工作经验的142名员工进行问卷调查,并对获得的有关数据进行了分析。研究结果显示:团队成员的教育背景异质性对知识创新绩效产生负面影响;知识技能与职业经验异质性对研发团队知识创新绩效均有积极显著影响,藉此进行了实证分析,进而提出了对策建议。     

研发模式对制造业企业创新绩效的影响

将企业研发模式分为自主研发、合作研发和双重研发三种,使用世界银行对中国制造业企业的调查数据,通过倾向得分匹配方法探究不同研发模式对企业创新绩效的作用效果及其在异质性企业中的差异情况。全样本研究结果表明：企业双重研发对创新绩效的激励效果最好,合作研发的激励效果次之,自主研发的激励效果最弱。企业异质性研究结果显示：自主研发对高成长性企业创新绩效的激励效果最显著,合作研发对低成长性企业和小微企业的激励效果最显著;对于无融资约束的企业,双重研发模式是提升创新绩效的最佳选择,但是对有融资约束的企业,其提升效果最弱。     

Naive learning and cooperation in network experiments

In this paper we study learning and cooperation in repeated prisoners' dilemmas experiments. We compare interaction neighbourhoods of different size and structure, we observe choices under different information conditions, and we estimate parameters of a learning model.We find that naive imitation, although a driving force in many models of spatial evolution, may be negligible in the experiment. Naive imitation predicts more cooperation in spatial structures than in spaceless ones—regardless whether interaction neighbourhoods have the same or different sizes in both structures. We find that with some interaction neighbourhoods even the opposite may hold.     

企业异质性与服务贸易保护水平的决定——基于中国数据的实证检验

笔者从政治经济学的分析视角,运用博弈论的分析方法,对企业异质性和服务贸易保护水平的相关性进行了理论分析,并结合中国服务部门的数据进行实证检验。结果表明:一个服务部门的产业集中度越高,劳动生产率越低,资本密集度越低,其贸易保护水平也越高。此外,中国所有制结构的特殊性赋予企业异质性更多的内涵,在一个服务部门内,国有企业的比重越大,贸易保护水平也越高。     

投资者异质、信息搜索与中国基金赎回之谜

基金赎回之谜是中国基金业的特有现象。本文通过构建包含投资者异质性、投资者信息搜索行为两种因素的投资者选择模型,证明了基金赎回之谜的存在,并进一步发现了另一种形式的基金赎回之谜:基金资金净流入与基金收益波动性呈反向关系。在此基础上,本文利用面板数据模型证实了这种赎回异象的存在。     

Do foreign exchange fund managers behave like heterogeneous agents?

This paper estimates an Heterogeneous Agent Model (HAM) on currency trader indices to explain the large shifts in profitability in currency styles surrounding the global financial crisis. In the model, fund managers allocate capital conditional on recent performance to a value strategy, a momentum strategy, and a carry strategy. Subsequent estimation results reveal that (1) a large part of the behavior of currency managers can indeed be described by these three simple strategies, and (2) currency managers shift capital from recent winning styles to recent losing styles, and hence apply a negative feedback strategy. We finally show that a negative feedback strategy is indeed optimal, but currency managers could improve performance by applying it less aggressively if they were able to.     

Inter-city travel behaviour adaptation to extreme weather events

Increased attention has been paid to travel behaviour in circumstances of extreme weather conditions that are expected with climate change, and the analyses usually address intra-city travel. There is lack of assessments on inter-city travel which has less redundancy and is more exposed to extreme weather threats. In addition, much of the research has been carried out in developed countries. This paper provides new perspectives by investigating how people adapt their inter-city travel behaviour to flooding impacts in Bangladesh. With an orthogonal design of three flooding scenarios, questionnaire data were collected in 14 coastal and inland areas. Results of the statistical analyses identify the significant impacts of flooding on people’s inter-city travel and reveal significant differences in attitudes and responses to flooding and extreme weather in coastal compared to inland locations. The main factors significantly affecting travel behaviour choice are road disruption, isolation by flood water, and flood frequency. These factors are felt differently in coastal and inland locations. The most common responses are cancelling trips or changing destinations. It is recommended that when making flooding adaptation decisions, it is important to protect road infrastructure and guarantee accessible routes in coastal areas, while offering more flood adaptation education to the inland people.