Industry-region Position and Economic Performance of Travel and Tourism Service Industry: An Agglomeration Perspective

Numerous studies have attempted to examine industry performance from an agglomeration perspective. However, many are still focused on the manufacturing sector. This study examines the travel and tourism service industry's economic position using an agglomeration perspective and whether this relates to its economic performance. This study discovered that, apart from being related to its intra-region position relative to other industries within the region, the economic performance of an industry in a region is also related to its intra-industry position relative to other distributive regions within the industry and to its national geographical concentration. A more significant finding is that regardless of either the intra-industry or intra-region position of the industry in a region, enhancing agglomeration not only increases competition and profit erosion but also improves labour productivity. For employment creation, it is more effective to develop an industry with more uniform national geographical distribution.     

Accessibility of flood risk insurance in the UK: confusion,competition and complacency

Flood risk insurance can be an effective tool in assisting the restoration of damaged property after a flood event and sustaining communities through difficult times. It can also form part of a wider flood risk management strategy. In the light of recent flood events in the UK and in the context of changing property insurance markets, the universal cover previously enjoyed by floodplain residents has been called into question. Conflicting media and industry views leave the floodplain resident and the wider community in confusion. A survey of floodplain residents in England regarding their experience with flooding and flood insurance in England has been undertaken. The results reveal that some floodplain residents do indeed encounter difficulties when seeking insurance for their homes. However, despite the risk‐averse policies of some insurers, availability of insurance is still strong in both at‐risk and previously flooded locations. Success in gaining insurance may lead to complacency among residents who see no advantage in pursuing other, more costly, damage mitigation actions. As a tool in risk management, therefore, the market is prevented from realising its potential by competition, which results in a lack of a consistent approach, rewards homeowners' search strategies and reduces information flow.     

中国企业贸易类型与国际贸易集中度的关系——基于中国制造业企业微观数据的实证研究

运用2005—2006年中国制造业企业的微观层面数据,将参与贸易的企业划分为4类,采用Gini系数和Theil系数研究企业贸易类型与国际贸易集中度的关系。研究结果表明:在制造业内,中国制造业企业的贸易活动相对集中于少数制造业细分子行业;在制造业细分子行业内,少数企业的进出口贸易额占总贸易额的大部分,只有少数企业有较多的出口目的地和进口来源地,并且企业的进口来源地更为集中。     

管理层持股、股权集中度与公司资本结构——来自中国上市公司的经验证据

本文以1176家上市公司为样本,实证检验了资本结构与股权结构之间的关系。实证结果表明:①管理层持股比例与负债率负相关,但不显著;②较高的股权集中度导致高的负债率;③管理层持股比例与公司债务之间的关联性不受公司股权集中度影响;④股权集中度与公司债务之间的关联性受管理层持股比例的影响;⑤管理层持股比例和股权集中度的相互作用能够调节股权与资本结构之间的关系。本文得出了许多有助于诠释资本结构之谜的结论。     

聚集外部性的非对称性承受与人口过度集中

由于农民工工资与城市生活成本的非相关性、农民工和应届大学毕业生对城市病的不敏感性、以及大城市居民中劳动人口数量很大的迁移成本等问题的存在,大城市工人部分丧失了向厂商索取较高名义工资以补偿其较高生活成本的能力。此时,厂商享受着大城市较高的聚集经济带来的高效率,却不用对工人较高生活成本进行完全补偿。这种厂商和工人承受聚集外部性的非对称性,必然引发生产与人口在大城市过度集中问题。     

黄河利用洪水排沙不必刻意拦粗排细

简要总结我国在黄河泥沙输移方面的研究成果,根据笔者多年的研究,得出如下结论:可以利用高含沙洪水输沙入海,适宜输送的不是低含沙量的水流,而是含沙量大于200 kg/m3的高含沙水流。黄河下游洪水期窄深河道多来多排的输沙特性是造成河道多来多排的机理,在低含沙水流时水流的流速达到1.8~2 m/s,床面进入高输沙动平整状态。不仅全沙如此,造床质泥沙(d>0.025 mm的粗泥沙)也存在着同样的输沙规律。小浪底水库的泥沙多年调节,充分利用下游河道的洪水输沙潜力输沙入海,是解决黄河下游泥沙问题和节省输沙用水的有效技术途径。平水年、枯水年小浪底水库不排沙,全部水量用于兴利和环境用水,利用洪水排沙不必刻意拦粗排细。     

论基于总量控制的排污权交易市场建设

与浓度控制相比,总量控制具有优越性,其将是我国环境管理政策的必然选择。在市场经济条件下,总量控制的实施,必然会产生排污权交易;而总量控制也是排污权交易的基础。因此,我国在由浓度控制向总量控制的转变过程中,要重视排污权交易市场的建设,加快立法步伐,制定科学的排污权交易规则,以适应环境新变化,逐步建立起完善的排污权交易市场。     

防洪堤与建筑艺术

文章对实际工程中常用的几种防洪堤进行分析比较,分别介绍了这几种防洪堤的优点和缺点,并对防洪堤的发展趋势作了展望。     

创意产业区域集聚的影响因素分析——以上海为例

本文通过设立集聚程度指标,结合上海的具体案例,检验智力资源、土地资源、市场资源、相关产业基础和支持等要素对创意产业集聚程度的影响强度,并对以上各因素进行进一步分析和说明,得出以上各因素对创意产业集聚程度具有重要影响的结论。     

基于ADF检验和CRn的我国汽车产业政策效应研究

通过对2007年1月至2011年8月我国汽车产销量的时间序列ADF检验,建构OLS法回归模型分析,发现2009年1月以来我国出台的一系列汽车产业发展政策对我国汽车产业的产销量产生了较大影响,其对产销量的增长有着明显的促进作用;同时,用行业集中度(CRn)分析汽车行业的集中情况,说明产业政策对提高我国汽车行业的集中度也产生了明显的政策效应。并结合结论和当前经济形势,提出未来我国汽车产业政策的相关建议。