人民币实际有效汇率的变化对我国进出口的影响

本文从空间和时间两个角度全面考察了人民币实际有效汇率的变化对我国进出口的影响。结果表明,人民币汇率的变化会显著影响我国的进出口。但是,这种影响程度在1994年以后明显地出现了下降趋势。同时,人民币汇率变化对我国进出口的调整存在明显的J曲线效应,其中进口变动大致滞后于汇率变动2个季度,而出口则滞后1个季度,滞后期限均短于西方发达国家。本文分析了其中的原因并提出了相关建议。     

Culture and age as moderators in the corporate reputation and loyalty relationship

This study investigates the moderating role of culture and relationship age in the relationship between customer-based corporate reputation (CBR) and customer loyalty using data from two service contexts (retailing and fast-food restaurants) in three countries (France, the U.K., and the U.S.) that differ with regards to two cultural values—uncertainty avoidance and time orientation. Results suggest that CBR has similar effects on affective and intentional loyalty in all three countries. However, culture interacts with relationship age, such that relationship age magnifies the effect of CBR in France, while relationship age suppresses CBR's effect in the U.K. and the U.S. The authors provide explanations for these effects based on cultural theories. Managerial and research implications are developed.     

Going for gold: Investigating the (non)sense of increased advertising around major sports events

Major sports events draw unsurpassed media attention. Companies are motivated to increase their advertising investments around these events to reach large audiences in a short period. Is such an advertising surge actually beneficial though, or should companies avoid advertising in these periods because of negative effects of competitive interference? This study investigates when consumer packaged goods companies should invest in advertising to increase sales: before, during, or after the event or outside these event periods. The author estimates short- and long-term own- and cross-advertising elasticities for 206 brands using four years of weekly data. Although considerable heterogeneity exists across brands, own-advertising effectiveness diminishes especially before and during major sports events, in both the short and the long run. In addition, brands benefit less from category-demand effects through competitors' advertising. Conversely, greater increases in advertising spending resulting in significant growth in share of voice around focused, single-sport events are a successful strategy to overcome this overall general negative trend.     

基于并行判决法的PCTH-UWB系统性能分析

伪混沌跳时序列(PCTH)最近提出应用于UWB系统。本文分析了PCTH-UWB的工作原理,提出了并行判决法,与直接判决法进行了比较,理论分析及仿真结果表明并行判决法可提高PCTH-UWB系统性能。     

房地产价格波动与投机行为--对中国14城市的实证研究

本文首先构建了适合中国的房地产投机理论模型,然后利用该模型对中国14个城市房地产价格波动与投机行为的关系进行实证研究.对14城市的时间序列数据研究结果表明各城市房地产投机水平都很高,个别城市更加突出.通过对14城市的截面数据分析,可以看出可支配收入对房地产价格没有显著影响,这些城市房地产价格的上升,主要是由投机来推动的,而且整体投机度非常高,说明房地产价格极大的偏离长期均衡值,市场出现了非理性繁荣,政府和产业部门应该采取适当的措施,积极引导消费者和投资者,为建立均衡的房地产市场提供良好的宏观和微观环境.     

中国省际区域经济差距演进及协调发展

实现区域协调发展是新时代中国区域高质量发展的必然要求。改革开放以来,中国省际区域经济差距经历了差距拉大—逐渐缩小—缓慢增大—逐渐缩小—维持不变的过程,逐步趋于收敛,其深层原因在于经济发展基础、资本投入、区域要素配置、区域要素使用和制度因素的地区异质性。推进区域经济协调发展,要不断加强对中西部地区的资本投入,优化资源配置,提高全要素生产率,提升开放水平,推进贸易高质量发展,完善与区域协调发展总体战略要求相适应的宏观区域政策和区域管理体制。