Vietnam University of Commerce
Hanoi, Vietnam
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Trinh T.P.,Vietnam University of Commerce | Tran D.,Vietnam University of Commerce
Pacific Asia Conference on Information Systems, PACIS 2015 - Proceedings | Year: 2015

Contemporary companies in developing countries are raising their budget on Enterprise systems (ES). ES are expected to enhance Customer agility (CA) which refers to a firm's capability to sense and respond to customer changes effectively. However, research in the relationship between ES on CA is contradictory. Taking Vietnam as the context, our study investigates the role of ES on CA in ten interviewed companies. Using multi-case methodology, the study also aims to seek for deep observation of CA in Vietnam business. Consistent with past literature, CA in the interviewed companies is affected by organizational context (i.e. industry, business function). In Vietnam, the role of ES on CA is not seen at its full extent. Most companies use ES to store and process data for its daily operation. Only a few of them store multiple types of data in their ES and utilize the advanced functions of the ES for customer analysis. Moreover, even when companies highly appreciate the competence of ES for advanced customer behaviour analysis, top managers are not using ES as a main source of information for their customer related decision-making. Due to their lack of trust on the capability of the system, low self-efficacy in ES usage plus the Vietnam trading specifics, top managers prefer other sources of data, own experiences and own report styles to make decisions.

Trinh T.P.,Vietnam University of Commerce | Pham C.H.,Vietnam University of Commerce | Tran D.,Vietnam University of Commerce
Pacific Asia Conference on Information Systems, PACIS 2015 - Proceedings | Year: 2015

Software as Service (SaaS) model of cloud computing is currently one of the most advanced technology innovations. Due to its scalability and network-based operation, SaaS offers opportunities for small and medium enterprises (SMEs) to take advantage of the latest technology without costly investment on IT infrastructure and expertise. Despite its benefits, SMEs' adoption of SaaS is not prevalent. In this paper, by synthesizing Diffusion of Innovation theory, Technology-Organization- Environment theory and Protection Motivation theory, we propose a conceptual model which explains adoption factors of SaaS in SMEs. Our proposed model extends focus on protection motivation of SMEs in assessing SaaS adoption risks in addition to technology, organisation, and environment factors.

Phu N.D.,Vietnam National University, Ho Chi Minh City | Dung L.Q.,Vietnam University of Commerce
International Journal of Reliability and Safety | Year: 2011

Recently, the field of differential equations is being studied in a very abstract manner. Instead of considering the behaviour of one solution of differential equations, its sheaf solution and, especially, fuzzy differential equations (differential equations whose variables and derivatives are fuzzy sets) are being studied. In this paper, fuzzy differential equations are generalised to be fuzzy set control differential equations (FSCDE), and we present the problem of stability and controllability of FSCDE. The paper is a continuation of our works in this direction for FSCDE. © 2011 Inderscience Enterprises Ltd.

Blooma M.J.,Vietnam University of Commerce | Kurian J.C.,Vietnam University of Commerce | Chua A.Y.K.,Nanyang Technological University | Goh D.H.L.,Nanyang Technological University | Lien N.H.,Vietnam University of Commerce
Computers and Education | Year: 2013

Social question answering (SQA) services are social media applications that are dedicated platforms where users ask, answer and rate content interactively, resulting in building a community of users. SQA services are rich in micro-collaborations which are referred to as brief, informal episodes of collaborative information seeking. Micro-collaborations have gathered interest in the educational domain because of new ways of engaging students in collaborative information seeking. Previous studies in the field of computer supported collaborative learning are based on various theoretical and methodological approaches that examined different units of analysis. Yet, amid on-going research efforts, there still persist a lack of an overarching understanding on how micro-collaborations enhance collaborative learning in SQA services. Hence, this study aims to understand the distribution of knowledge, cognitive process and social dimension that learners demonstrate in micro-collaborations in a SQA service. Data was collected from Piazza, a SQA service used for teaching Java programming for bachelor students and analyzed using the integrated framework. Findings suggest that micro-collaborations in SQA services promote all the three dimensions including knowledge, cognitive process and social dimensions. The findings reveal that social dimension in micro-collaborations promote collaborative learning by enhancing community building, developing self-identity, and improving relational dynamics, which in turn support learning in various knowledge levels and improve the cognitive process in learning. This study serves as a foundation for researchers to study social dimension along with knowledge and cognitive process, to understand the dynamics of micro-collaborations involved in collaborative learning. As for practitioners, they can look into creating environments for collaborative learning rich in micro-collaborations in both physical as well as digital space. © 2013 Elsevier Ltd. All rights reserved.

Le T.-H.,Vietnam University of Commerce | Chang Y.,Nanyang Technological University
Resources Policy | Year: 2016

This study applies the bounds testing approach to cointegration to the daily data from 01-December-1997 to 15-July-2016, in order to investigate the relationships between the prices of two strategic commodities (oil and gold) and the macro-financial variables (interest rate, exchange rate and stock price) in Japan, a major oil-consuming-and-importing as well as gold-holding-and-exporting country. The results suggest that oil prices seem to have limited information for the Japanese policy-makers in the long run. In the short run, however, oil and gold prices seem to have more useful information to presage fluctuations in the Japanese macro-financial variables including stock price and interest rate. © 2016 Elsevier Ltd

Le T.-H.,Vietnam University of Commerce | Chang Y.,Nanyang Technological University
Energy Economics | Year: 2015

The main focus of this study is to examine how oil price fluctuations influence the performance of stock markets. This study used the causality approach developed by Toda and Yamamoto (1995) to explore the causality between oil prices and stock prices in the long-run and their short-term impact. The generalized impulse response functions were applied to the monthly data in the period from January 1997 to July 2013. In this study, to capture the different characteristics of oil refining, exporting and importing, three Asian economies were examined. The results indicate that the manner in which a market reacts to hikes in oil prices varies between different markets and periods. This depends on differences in the oil characteristics of the economy and the nature of the shock in oil prices. © 2015 Elsevier B.V.

Kurian J.C.,RMIT University | Kurian J.C.,Vietnam University of Commerce
Online Information Review | Year: 2015

Purpose - The purpose of this paper is to explore the type and implications of user-generated content posted by users of an open access institutional repository (DSpace) on Facebook. Design/methodology/approach - The identified user-generated content was organised into three categories: personal; professional; and social information. It encompassed all content from the members of the "DSpace" Facebook group, posted during the seven-year period (2007-2014). The posts were read and analysed to identify and categorise user-generated content posted by users to determine how Facebook is used by open access repository users. Findings - The results of analysis demonstrate the importance of social information posted by users over personal and professional information. Major types of user-generated content posted by users in the social information category were request, greetings, status-update, and announcement. Further, there has been a threefold increase in the number of user postings in the last two years (2013-2014), when posts were analysed over a seven-year period. Research limitations/implications - This study contributes to the theory on the implications eventuating from user-generated content posted by users of an open access institutional repository. An analysis of user-generated content identified in this study implies that users of DSpace open access repository are primarily using Facebook for information seeking, relationship building, and knowledge dissemination. Practical implications - By analysing the findings, administrators and policy makers of open access repositories could identify the extent of user support in the form of technical assistance, improved sustainability of supported projects, user community development, marketing and communications required to sustain open access scholarly communication. Originality/value - Previous studies examined how social networking sites have been used for a different purpose (interaction, collaboration, and discussion), but to date there has been very little research into the use of Facebook, a public social networking site, by open access repository users. Hence, this study addresses this gap in the literature by an interpretive analysis of user-generated content posted by users on the "DSpace" Facebook group. © Emerald Group Publishing Limited.

Santarelli E.,University of Bologna | Tran H.T.,Vietnam University of Commerce
Growth and Change | Year: 2012

This paper analyzes the relationship between the performance of incumbent firms the net entry of new firms by combining various theoretical views of entrepreneurship. Different regression models to treat dynamics endogeneity issues are applied to test the research hypothesis with regional micro-data for 61 Vietnamese provinces from 2000 to 2008. The main finding is that net entry is associated with the performance of incumbent firms the overall performance of the economy. Incumbents' growth gross domestic product growth induce changes in the existing production system stimulate the creation of an economic environment more favourable to new firm formation. Consistent with the hypotheses put forward within the "knowledge spillover," the "error-correction," other approaches, incumbents may generate new entrepreneurial opportunities not only for themselves but also for the whole society. © 2012 Wiley Periodicals, Inc.

Giap C.N.,Vietnam University of Commerce | Ha D.T.,Vietnam University of Commerce
2014 International Conference on Computing, Management and Telecommunications, ComManTel 2014 | Year: 2014

In this paper, we study parallel genetic algorithm for solving a well-known NP-hard problem in graph theory that is minimum dominating set problem. We have, at first, investigated for a high performance parallel genetic algorithm for such problem. The experiment proves that the single distributed population parallel genetic algorithm is a desired solution. Secondly, we have investigated how difficult it is to find the suitable formulations of the genetic operations for our parallel genetic algorithm. Finally, we run the proposed algorithm on variant data sets, which are designed specifically for minimum dominating set problem, to navigate the best parameter for each genetic operation. © 2014 IEEE.

Nguyen M.,Vietnamese German University | Truong M.,Vietnam University of Commerce
Procedia CIRP | Year: 2016

The term "sustainable development" has been a catch-all phrase in recent years. Corporate Social Responsibility (CSR) is seen as one of the media for sustainable development. In some countries, CSR has received much attention and achieved certain successes. However, in many other countries including Vietnam, perception of CSR remains vague and the adoption of CSR is limited. This study reviews different approaches to CSR and gives a conceptual framework of how cultural values influence CSR perception of enterprise. Some analysis on culture and data collection in Vietnam's case are carried out as example for the proposed framework. The study suggests several directions for future research on CSR. © 2016 The Authors. Published by Elsevier B.V.

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