城市大气中污染物扩散的施密特数研究

借助反问题方法对风洞实验工况选取不同施密特数进行数值模拟试验,分析比较了不同施密特数时街道峡谷内各个观测点的数值模拟数据和风洞实验数据.研究结果表明,城市街道内大气污染物扩散的施密特数为0.7～0.8.     

服务业创新与现代产业体系构建

通过高铁案例,说明在现代产业体系形成过程中,服务业技术创新具有至关重要的作用。但不是所有的服务业技术创新都能对现代产业体系的构建起到至关重要的作用。服务业技术创新还需要同时具备以下条件:(1)技术创新必须发生在能够带动其他产业发展的生产性服务业部门;(2)技术创新必须与一国的自然和社会环境相适应,具有可持续性;(3)必须是原创性技术创新。要素禀赋与技术创新的内生关系使中国技术创新存在路径依赖,很难出现符合以上条件的技术创新。因此,政府对创新的正确干预和引导将有利于推动我国现代产业体系的形成。     

广东省与江西省制造业集聚发展状况的对比研究

对广东省与江西省两个差异显著的省区制造业集聚状况从不同角度进行对比分析:从区域方面对比分析,发现制造业在江西省比广东省在空间上更为集聚;从行业方面分析,发现两省最为集聚的产业基本上是一些资本或技术密集型行业,最为分散的产业是技术含量低的劳动密集型行业。一些资源加工型行业、资本技术密集型行业以及历史悠久的传统行业在广东省与江西省集聚态势差异显著。实证分析表明,影响两省制造业集聚的因素存在一定的差异,但也存在着相似性。导致差异的原因源于制造业在不同省区的自然优势、集聚效应以及内涵的差异,但政策与制度因素仍然是主导。     

《劳动合同法》对企业成本影响的测算方法与实证研究——金融危机下的应急措施

<劳动合同法>实施以来,在国内学术界和实业界引起了轩然大波.2008年以来,一些企业的倒闭、搬迁,更将这部立意颇好的法律推到了风口浪尖.针对实施<劳动合同法>对企业成本影响的问题,采用分层目录抽样方法,抽取了珠三角、粤东、粤西、粤北地区13个具有代表性的城市,不同类型、不同行业共650户企业进行调研,运用成本测算直接法和间接法,对广东调研企业成本进行统计测算.测算结果显示,广东实施<劳动合同法>对企业人均人工成本的影响区间为2.54%～4.90%,用调研事实澄清了社会上流传的10%～70%的谬误.还从政府、企业和员工角度分别提出在实施<劳动合同法>过程中应对金融危机的对策,为各级政府和企业决策提供依据.     

Male backlash, bargaining, or exposure reduction?: women’s working status and physical spousal violence in India

Labor force participation of women is expected to decrease the risk of spousal violence by enhancing their bargaining power or diminishing their contacts with abusive partners. The opposite effect is predicted when female employment induces male backlash. I identify the effect of female employment on spousal violence by exploiting the exogenous variations in rural women??s working status driven by rainfall shocks and the rice?Cwheat dichotomy. The instrumental variable regression result indicates that female employment significantly reduces the incidence of spousal violence. This result is mainly driven by the exposure reduction effect that dominates male backlash. There is, however, no evidence on the bargaining effect.     

Bayesian misclassification and propensity score methods for clustered observational studies

Bayesian propensity score regression analysis with misclassified binary responses is proposed to analyse clustered observational data. This approach utilizes multilevel models and corrects for misclassification in the responses. Using the deviance information criterion (DIC), the performance of the approach is compared with approaches without correcting for misclassification, multilevel structure specification, or both in the study of the impact of female employment on the likelihood of physical violence. The smallest DIC confirms that our proposed model best fits the data. We conclude that female employment has an insignificant impact on the likelihood of physical spousal violence towards women. In addition, a simulation study confirms that the proposed approach performed best in terms of bias and coverage rate. Ignoring misclassification in response or multilevel structure of data would yield biased estimation of the exposure effect.     

An empirical study of the relationship between a self-service technology investment and firm financial performance

More and more enterprises are taking advantage of self-service technologies (SSTs) in their customer-related operating activities, especially service firms. Although research on SSTs is prevalent, few studies have examined the impact of SSTs on firm financial performance. Given the growing importance of SSTs in the service industries in general and in the banking industry in particular, we therefore empirically examined the impacts of ATMs, one of the most widely accepted SSTs, on bank financial performance. Contrary to the existing literature, our results show ATMs have a positive relationship with profitability. However, we find no association between ATMs and growth performance.     

论汉魏六朝连珠体的演变与文学发展

古代文学中的连珠体肇兴于汉,陆机则完善了连珠体的体式,发展为连珠体“理要”的正格;南朝时由于当时文学风尚的影响,连珠体的写作呈现个性化与抒情化的特征,形成了多样化的“别格”。也就是说,连珠体的发展正好与汉魏六朝时期整个文学与文化的演变发展密切相关,故由连珠而论汉魏六朝文学,可以见微知著。隋唐及其后的连珠体无论在体制还是成就上都并没有超出六朝时期,又可见连珠体在汉魏六朝时期的独特性。     

论惩罚性损害赔偿

惩罚性损害赔偿制度在英美法系国家由来已久,可我国直到现在还未真正建立这一制度,这不仅是我国法律制度中的缺憾,还使得现实生活中种种不公平现象无法得以解决。我们应借鉴国外的惩罚性损害赔偿制度,早日建立我国的惩罚性损害赔偿制度。