The Need for a Field of Study of Implementation of Innovations

The study of innovation has been approached from many disciplines and from the point of view of different real life problems. As a result, we have a series of clusters of knowledge that are related but seldom integrated. Chris Voss suggests it is time we closed at least one of these gaps. He suggests there should be a field of study should be established that will build a bridge between work on the process of innovation and work on the diffusion of innovation. He presents a starting point for the new field of study.     

Determinants of Success in the Development of Applications Software

In this article, the third in the trio of software innovation articles, Chris Voss outlines the key factors that determine whether a new software development is likely to be successful. His research draws on an innovation framework that has emerged from previous research. His results are similar to those of the earlier studies and suggest that the software innovation process has many demands that are common to innovation in other product areas.     

Interval programming model for risk-based partner selection of virtual enterprise

The problem of risk-based partner selection of virtual enterprise is investigated. By choosing optimal partner for each project task, the project risk is minimized. The risk parameters are expressed in the form of interval numbers when the precise values are difficult to obtain, and the model is formulated into a 0-1 nonlinear programming with interval coefficients in its objective function. In order to solve the problem, the definition of order relation between interval numbers is given, and the original model is converted into an equivalent crisp bi-objective programming model. Because of the highly constrained nature and multiple objective of the model, a genetic algorithm is proposed to find the set of Pareto or near Pareto optimal solutions. The approach is demonstrated by some numerical examples, and the result shows that the suggested approach has high efficiency and the model has potential to practical applications.     

Sales recruiting—A major area of underinvestment

How does a firm decide whether the amount now being spent to generate sales force applicants is too much, not enough, or about right? This question can be answered by using information routinely generated by corporate activities and a relatively straight forward decision theory technique. To illustrate that technique, an analysis was conducted for a hypothetical but by no means atypical firm. The results suggest that many corporations could appreciably increase their overall profitability by spending more on sales force recruitment and selection.     

Recycling consumer solid waste: A commentary on selected channel alternatives

The recycling of consumer solid waste presents special problems for reverse marketing channels. Specifically, the accumulation of bulk quantities of homogenous materials from consumer-generated sources that are highly heterogenous in nature represents a major functional problem that must be overcome through the development of appropriate reverse marketing channels. In this article, factors influencing reverse channels development are outlined, and specific marketing implications concerning the three basic channel types that primarily handle consumer solid waste are discussed.     

基于IEEE802.11a的符号定时同步新方法

<正>张媛的“电子商务与税收新理念的探析”一文,在本刊2005年第6期发表后,本刊收到西南财经大学尹音频检举张文存在抄袭内容的来信。本刊立即展开调查工作,现将有关调查与处理情况公告如下: 1．经鉴定,张文大量甚至原封不动地抄袭了尹音频的“电子商务税收理念与     

初相注入式快速符号同步的一种实现方法

通过平方滤波算法对时钟初相进行预估计,实现了Gardner算法下初相注入式符号同步.该方法具有快速、高精度的特点,尤其是较好地解决了初始点为过零点的极端情况下,Gardner算法收敛方向不确定、收敛时间较长的问题.计算机仿真和实际应用证实了该方法的有效性.     

The Association between Disclosure,Distress, and Failure

The quality of corporate disclosures has drawn increasing levels of criticism from Congress and the SEC. A subject of particularly intense scrutiny and action is the Management’s Discussion and Analysis (MD&A). This narrative, intended to provide an inside perspective on the reported results of the firm, is particularly important when attempting to evaluate the investment prospects of the marginal or poorly performing firm. However, managers may restrict the information content of the disclosure, raising potential concerns about ethical behavior. In this study, we employ a proprietary instrument to measure the quality of MD&A disclosures for a sample of firms entering financial distress. We evaluate the disclosure behavior of these firms in an effort to determine whether changes in the disclosure appear to be motivated primarily by economic or ethical concerns. We find, on average, that firms increase disclosure quality in the year of initial distress. However, sustained increases in disclosure quality are limited to firms that subsequently recover from the distress. The results suggest that observed changes in disclosure are driven primarily by economic considerations, rather than ethical ones, especially in good economic times.     

Hooliganism and Demand for Football in Italy: Attendance and Counterviolence Policy Evaluation

This paper empirically investigates the relationship between stadium attendance, hooliganism and counter‐violence policy measures in Italian Serie A. In particular, this paper analyses the impact of counter‐hooliganism policies adopted in 2007 on the quantity of game tickets sold. The counter‐hooliganism measures, grounded on an entry card, namely a ‘fidelity card’, were designed to keep out hooligans from stadiums so favouring the attendance of either occasional spectators or uncommitted fans. According to our econometric investigation the expected substitution between committed fans and uncommitted fans did not take shape. In sum, the ‘fidelity card’ did not turn to be successful if evaluated on the average attendance perspective.     

一种改进的非凸秩最小化算法及其在矩阵恢复中的应用

在分析现有处理矩阵恢复问题的非凸秩最小化算法的基础上,提出了一种基于超松弛迭代的改进算法,并给出了松弛因子ω的确定准则。仿真实验表明:在惩罚参数选取较大的情形下,改进算法较原算法具有更快的收敛速度及更高的收敛精度,同时展示了基于非凸秩最小化算法的矩阵恢复技术在图像去噪中的应用。