INEQUALITY AND AGGREGATE DEMAND IN THE IS‐LM AND IS‐MP MODELS

This paper presents an extension to the textbook IS‐LM and IS‐MP models that allows the short run effects of an increase in household income inequality to be studied in a simple manner. The income distribution is assumed to be log‐normal, and the coefficient of variation of income is assumed to be exogenous. The latter is used as the measure of income inequality, and enters otherwise standard IS and LM curves in a straightforward manner. While the models are highly stylised, they can easily be extended to more complicated variants.     

科研机构项目管理系统中ISO 9001质量管理控制程序的设计与实现

文章以实现科研项目管理的系统化、条理化、清晰化为目的,论述了科研机构项目管理系统部署中工作流模块与ISO 9001管理控制程序结合的具体实现方法。     

An empirical identification and categorisation of training best practices for ERP implementation projects

Although training is one of the most cited critical success factors in Enterprise Resource Planning (ERP) systems implementations, few empirical studies have attempted to examine the characteristics of management of the training process within ERP implementation projects. Based on the data gathered from a sample of 158 respondents across four stakeholder groups involved in ERP implementation projects, and using a mixed method design, we have assembled a derived set of training best practices. Results suggest that the categorised list of ERP training best practices can be used to better understand training activities in ERP implementation projects. Furthermore, the results reveal that the company size and location have an impact on the relevance of training best practices. This empirical study also highlights the need to investigate the role of informal workplace trainers in ERP training activities.     

一种利用约束Viterbi算法改进IS95协议信道编码的方法

IS95具有两个速率集,在同一个速率集中,不同的速率其数据帧的长度不同,为了使进入正交调制的数据帧的长度相同,其采用了信号重复器.信号重复器进行简单的重复作用,使得带宽不能充分利用.文中提出的方法利用一个信号发生器,产生已知的信号进入卷积编码,卷积编码后的数据帧长度同样符合要求,而信号发生器产生的已知信号在译码端可以作为译码时的约束条件进行约束Viterbi译码.在BSC信道模型的仿真结果证明,其在较高误码率的情况下具有较好的性能.     

Quality of virtual reality and its impacts on behavioral intention

Although virtual reality (VR) has received growing attention and been adopted as customer engagement and marketing tools in the hospitality and tourism industry, little research has been conducted in quality assessment of VR and its impact on customers’ psychological acceptance. Building upon the DeLone and McLean’s IS success model, this study identifies the quality factors of VR and examines their impacts on customers’ behavioral intention. This study develops a quality-driven VR framework and tests the proposed hypotheses assessing customers’ behavioral intentions. For the empirical analysis, this study recruits potential U.S. customers and asks them to browse a VR-based destination website and then to answer the online survey related to VR applications. The collected responses are analyzed by PLS-SEM. Findings suggest that content quality, system quality, and vividness positively influence customers’ attitude and telepresence, leading to their positive behavioral intention to visit the destination.     

Evaluating business value of IT towards optimisation of the application portfolio

Information technology has become heavily embedded in business operations. As business needs change over time, IT applications are expected to continue providing required support. Whether the existing IT applications are still fit for the business purpose they were intended or new IT applications should be introduced is a strategic decision for business, IT and business-aligned IT. In this article, we present a method that aims to analyse business functions and IT roles and to evaluate business-aligned IT from both social and technical perspectives. The method introduces a set of techniques that systematically supports the evaluation of the existing IT applications in relation to their technical capabilities for maximising business value. Furthermore, we discuss the evaluation process and results that are illustrated and validated through a real-life case study of a UK borough council and followed by discussion on implications for researchers and practitioners.     

A monetary policy model for India

A New Keynesian model estimated for India yields valuable insights. Aggregate demand reacts to interest rate changes with a lag of three quarters, while inflation takes four quarters to respond to demand conditions. Inflation thus responds to monetary policy actions with a lag of seven quarters. Inflation is inertial and persistent when it sets in, irrespective of the source. Exchange rate pass-through to domestic inflation is low. Inflation turns out to be the dominant focus of monetary policy, accompanied by a strong commitment to the stabilization of output.     

The Impact of Information Overload and Contribution Overload on Continued Usage of Electronic Knowledge Repositories

In the modern competitive organizational environment, more and more organizations are implementing knowledge management initiatives to achieve strategic advantages. One such initiative involves the implementation of electronic knowledge repositories (EKR). EKR implementation frequently results in a rapid increase in the quantity of information that must be processed daily by employees. This raises concerns about information overload (IO), and this is particularly true in relation to modern EKRs that use distributive technology. Furthermore, employees can also suffer from contribution overload (CO) because they can fulfill the functions of both knowledge seekers and knowledge contributors. This study employs the cognitive dissonance theory to determine whether IO and CO affect employees' willingness to use EKRs. The results from 144 survey respondents provide the first empirical evidence that contribution overload exerts a direct and significant negative effect on the intention to continue using EKR, whereas information overload exerts an indirect and significant negative effect on the intention to continue using EKR by altering perceived usefulness and satisfaction with the system.     

A New Keynesian IS curve for Australia: is it forward looking or backward looking?

This article estimates the forward looking, backward looking and an extended version of the New Keynesian IS curve for Australia. The validity of these models is investigated by imposing the constraint on real rate of interest as well as when the constraint is relaxed. Two measures of output gap, namely GAP1 (constructed using the unobserved components approach) and GAP2 (constructed using a quadratic trend) are utilized. Our results suggest that the baseline backward looking and forward looking models are overwhelmingly rejected by the data. This evidence strongly supports the extended backward looking model (with GAP2) being relevant for monetary policy analysis.