经济、贸易与环境相容关系论说

经济、贸易与环境相容意指经济增长、贸易扩大没有损害环境,其判别标准包括零污染排放或者污染排放零增长、零污染遗留或者污染遗留零增长、环境自净极限等三级标准;其实现的必要条件是环境有益的结构效应和技术效应足以抵消规模效应;其测度指标包括绝对值、变化事和比率等三类指标.经济-环境、贸易-环境两对相容关系的成因不尽相同.     

滨海旅游开发的环境效应分析与对策——以福建省泉州湾北岸为例

泉州湾北岸滨海旅游资源丰富,在对泉州湾北岸旅游资源开发分析的基础上,针对崇武古城、青山湾、百崎湖、红树林和洛阳桥的滨海旅游开发环境效应问题,提出泉州湾北岸滨海旅游开发的保护对策。     

Volume,volatility and information linkages in the stock and option markets

This paper examines the relationship between option trading activity and stock market volatility. Although the option market is uniquely suited for trading on volatility information, there is little analysis on how trading activity in this market is linked to stock price volatility. The bulk of the discussion tends to focus on whether trading activity in the stock market is informative about stock volatility. To analyze the information in option trading activity for stock market volatility, a sample of 15 stocks with the highest option trading volume is selected. For each stock, it is noted that the trading activities in the put and call option markets have significant explanatory power for stock market volatility. In addition, the results indicate that the call option trading activity has a stronger impact on stock volatility compared with that of the put options. Our results demonstrate that information and sentiment in the option market is useful for the estimation of stock market volatility. Also, the significance of the effects of option trading activity on stock price volatility is observed to be comparable to that of stock market trading activity. Furthermore, the persistence and asymmetric effects in the volatility of some stocks tend to disappear once option trading activity is taken into account.     

中国货币政策区域效应研究

本文以货币政策传导机制理论为基础,通过构建面板模型,对货币政策的区域效应进行定量分析,研究结果表明,中国货币政策存在明显的区域效应差异。从贷款投放对经济增长的刺激作用来看,中部、东北和东部地区省份的效果比较明显,而西部地区的效果较差。对于资本投入相对不足的西部地区,要加快实施西部大开发战略、调整区域经济结构、推动产业转移;对于资本积累充足的东部地区,要提高资本的边际产出率,提高经济效率。     

产学研合作对湖南省区域经济增长影响的实证分析——基于非参数方法

运用非参数计量方法对湖南省14个市(州)的产学研合作和区域经济增长进行实证分析,结果表明湖南省各市(州)产学研合作对经济增长的影响弹性约为0.12,因此,应进一步理顺管理体制,完善配套政策,选择符合当地实际的产学研合作模式。     

提升总体劳动收入份额过程中的结构优化问题研究——基于产业与部门的视角

基于收入法GDP和资金流量表核算的劳动收入份额数据,本文在探讨劳动收入份额构成、波动性并进行结构分解的基础上,研究了总体劳动收入份额稳步提升中的结构优化问题。在提升总体劳动收入份额过程中,在保持产业(部门)结构相对稳定时要重视产业(部门)内部劳动收入份额的结构优化,在维持产业(部门)劳动收入份额相对稳定时要重视不同产业(部门)增加值比重提高过程中的产业(部门)结构优化;还要重视产业(部门)内部效应和产业(部门)结构效应的协同对稳步提升总体劳动收入份额的综合效应。在优化结构时稳定维持第一产业(企业部门)劳动收入份额和努力增加第三产业(住户部门)增加值占国民经济的比重对提升总体劳动收入份额至关重要。     

Entry into platform‐based markets

This paper examines the relative importance of platform quality, indirect network effects, and consumer expectations on the success of entrants in platform‐based markets. We develop a theoretical model and find that an entrant's success depends on the strength of indirect network effects and on the consumers' discount factor for future applications. We then illustrate the model's applicability by examining Xbox's entry into the video game industry. We find that Xbox had a small quality advantage over the incumbent, PlayStation 2, and the strength of indirect network effects and the consumers' discount factor, while statistically significant, fall in the region where PlayStation 2's position is unsustainable. Copyright © 2011 John Wiley & Sons, Ltd.     

The welfare effects of mobile termination rate regulation in asymmetric oligopolies: The case of Spain

This paper examines the effects of mobile termination rate regulation in asymmetric oligopolies. It extends existing models of asymmetric duopoly and symmetric oligopoly where consumer expectations about market shares are passive. First, demand and product differentiation parameters are calibrated using detailed data from the Spanish market from 2010. Next, equilibrium outcomes and welfare effects under alternative scenarios of future termination rates are predicted. Lowering termination rates typically lowers profits of all networks and improves consumer and total surplus.     

央视广告宣传对企业品牌传播效果的影响机制研究——以美的为例

品牌传播是企业打造品牌的关键环节,而媒体平台的选择又是企业品牌传播的核心。中央电视台作为全国惟一一家国家级电视台,集聚了技术、设备、人才和网络覆盖等各方面优势。根据RH．科利的DAGMAR理论,实证分析央视广告宣传对美的品牌传播起到的重要作用,并针对品牌传播中的不足提出进一步改进的策略,以为中央电视台打造专业、时尚和国际化的品牌传播平台提供策略指导。     

能源价格波动对粮食生产成本的动态影响研究

能源价格波动会对中国粮食生产成本造成冲击,而且不同类型能源价格波动的动态冲击效果存在差异。运用向量自回归模型和脉冲响应函数研究发现,煤炭价格对粮食生产成本的影响十分显著,石油价格对粮食生产成本具有潜在影响。农户会调整生产要素投入以应对能源价格对粮食生产成本的冲击,但由此也给粮食生产带来负面影响。因此,应推广科学的粮食生产方式,减少对能源的依赖,并完善能源价格挂钩型农资的调控政策以及优化农资补贴方式。