Do time constraint and emergency purchase situation exert same influence on shopping? A study under haptic touch influence

Marketing literature has identified emergency purchase situation and time constraint as important situational influences. However, both of them are often equated with each other as both require shopping to be done in a short time. This study makes an attempt to eliminate the confusion by studying the impact of two situation variables on product evaluation and purchase intention under the influence of haptic touch. Two studies conducted to test the hypotheses show that while emergency purchase situation has a significant impact under no-touch influence, the same can not be said for time constraint situation.     

Is exchange rate stability beneficial for stabilizing consumer prices in China?

This study examines the relationship between real effective exchange rates (REERs) and the consumer price index (CPI) in China, utilizing a bootstrap Granger full-sample causality test and a sub-sample rolling-window estimation. Considering structural changes, we assess the stability of the parameters and find that both the short-run and long-run relationships between the two estimated variables are unstable. This result suggests that full-sample causality tests cannot be relied upon. We instead employ a time-varying (bootstrap) rolling-window approach to revisit the dynamic causal relationship, and we find that the CPI is affected by the REER for several sub-samples due to the role of exchange rate pass-through (ERPT) under the managed floating exchange rate regime in China. These findings provide further proof of the impact of stable exchange rates on the maintenance of relatively steady price levels especially during the economic crisis and economic reform in China. The policy implication of these findings is that maintaining exchange rate stability is beneficial for controlling inflation during the economic crisis and economic reform.     

一种Link16信号的检测识别算法

在Link16信号侦察中,Link16信号的检测识别是实现信号分选的基础和关键。设计了一种基于双滑动窗的自适应双门限Link16信号检测识别算法,具有检测识别准确率高、实时性好、易于工程实现的特点。仿真结果表明,当信噪比在7 dB以上时,脉冲检测识别正确率均在95〖WT《Times New Roman》〗%〖WTBZ〗以上。     

Accounting Window Dressing and Template Regulation: A Case Study of the Australian Credit Union Industry

This article documents the response of cooperative institutions that were required to adhere to new capital adequacy regulations traditionally geared for profit-maximising organisations. Using data from the Australian credit union industry, we demonstrate that the cooperative philosophy and internal corporate governance structure of cooperatives will lead management to increase capital adequacy ratios through the application of accounting window dressing techniques. This is opposite to the intended purpose of template regulation aimed at efficiently increasing operating margins and lowering risk. Our results raise several debatable issues regarding the ethics of accounting management and the imposition of one-shoe-fits-all external regulation.      

随机需求下带时间窗IRP问题的遗传算法研究

研究随机需求条件下带时间窗的IRP问题的数学模型,并借助遗传算法来求解这一模型。以某物流公司配送系统为例,获得了路径安排和库存策略的优化目标解。实验结果表明这不仅能明显减少迭代次数,而且可以改善优化计算结果。     

外国直接投资与我国经济增长:基于VAR模型的动态效应分析

本文分析了外国直接投资影响我国经济增长的6种效应,利用协整检验与格兰杰非因果性检验重新检验了各种效应与外国直接投资的长期关系与因果关系,并利用脉冲响应函数和方差分解方法对外国直接投资的时滞效应进行了较为完整的细致分析。结果显示:首先,外国直接投资可以通过资本积累、出口促进、投资拉动、技术溢出、产业结构优化和制度变迁6种具体效应来促进我国的经济增长;其次,外国直接投资对各种不同具体效应的时滞期各不相同。     

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.     

一种高效的Turbo码硬件实现算法

针对Turbo码译码实现中硬件消耗、时延和纠错性能之间的矛盾，对Turbo码硬件实现中的译码算法进行了优化研究，提出了一种基于MAX-Log-MAP算法的高效Turbo码硬件实现算法。实验表明，本文所实现的Turbo码是硬件消耗与译码性能的良好折衷。     

Performance Implications of Online Entry Timing by Store-Based Retailers: A Longitudinal Investigation

This paper utilizes Time Series Cross-Sectional (TSCS) Regression techniques to investigate long-term performance effects of the timing of online sales adoption by incumbent bricks-and-mortar retailers. Its findings support the resource-based theory of competitive advantage by showing that firm-specific resource endowments (bricks-and-mortar experience, catalog experience and firm size) determine the success of the order of online entry strategy. The study contributes to the development of strategic theory in the areas of multi-channel retailing and electronic commerce and assists managers in formulating more informed strategic objectives for achieving multi-channel competitive advantage.     

Nonlinear deterministic forecasting of daily dollar exchange rates

We perform out-of-sample predictions on several dollar exchange rate returns by using time-delay embedding techniques and a local linear predictor. We compared our predictions with those by a mean value predictor. Some of our predictions of the exchange rate returns outperform the predictions of the same series by the mean value predictor. However, these improvements were not statistically significant. Another interesting result in this paper which was obtained by using a recently developed technique of nonlinear dynamics is that all exchange rate return series we tested have a very high embedding dimension. Additionally, evidence indicates that these series are likely generated by high dimensional systems with measurement noise or by high dimensional nonlinear stochastic systems, that is, nonlinear deterministic systems with dynamic noise.