If you would like to write for this, or any other Emerald publication, then please use our Emerald for Authors service information about how to choose which publication to write for and submission guidelines are available for all. Please visit www.emeraldinsight.com/authors for more information. About Emerald www.emeraldinsight.comEmerald is a global publisher linking research and practice to the benefit of society. The company manages a portfolio of more than 290 journals and over 2,350 books and book series volumes, as well as providing an extensive range of online products and additional customer resources and services.Emerald is both COUNTER 4 and TRANSFER compliant. The organization is a partner of the Committee on Publication Ethics (COPE) and also works with Portico and the LOCKSS initiative for digital archive preservation. AbstractPurpose -The purpose of this paper is to examine the factors that influence e-government adoption in Cambodia as one of the Association of Southeast Asian Nations (ASEAN) member states. Design/methodology/approach -This study uses the technology acceptance model (TAM), the extended TAM (TAM2), the diffusion of innovations (DOI) theory, and trust to build a parsimonious yet comprehensive model of user adoption of e-government. The authors test the model with an empirical study. Data are collected from a total of 112 public officers in 12 ministries in Cambodia. The research model is then assessed with multiple regression analyses. Findings -The findings in this study show that the determinants of the research model (perceived usefulness, relative advantage, and trust) are support. At the same time, the important determinants of perceived usefulness include image and output quality. Practical implications -The study would help government policy decision makers design and implement policies and strategies to increase the adoption of e-government services in Cambodia as well as in other countries, particularly ASEAN member states that have a similar situation. Originality/value -This paper is one of a few studies on e-government adoption in ASEAN and the first study on e-government adoption in Cambodia.

Purpose -The purpose of this paper is to investigate factors influencing end-user acceptance and use of government administration information system (GAIS). Design/methodology/approach -A conceptual structural model of end-user acceptance and use of the GAIS was developed with technology acceptance model as a theoretical background and tested using a structural equation modeling with partial least squares (PLS) approach on a data collected from a survey among 112 public officers in 12 ministries in Cambodia. Findings -The results indicate that the factors influencing end-user adoption of the GAIS are significantly affected by perceived usefulness, relative advantage, and trust. Perceived usefulness of the GAIS is directly affected by subjective norm, image, output quality, and perceived ease of use. Practical implications -The results are of practical significance to all those interested in this area, mainly the government policy makers and practitioners in Cambodia's public services. Originality/value -The paper is the first to investigate end-user adoption of the GAIS. It is unique to Cambodia. It adds to the limited literature in e-government in Cambodia. Simultaneously, the PLS approach use in this study is quite unique with government information system research. As such, it contributes to the methodology development in the government information system research field.

The purpose of this paper is to develop a conceptual model for e-Government acceptance in public sector which is one of the least studied aspects of e-Government. The proposed model uses theories from technology acceptance and success and the diffusion of ICT-related innovations. It integrates constructs from the Technology Acceptance Model (TAM), the theoretical extension of the TAM (TAM2), the Diffusion of Innovation (DOI), the Updated DeLone and McLean (D&M) IS Success Model, trust and risk literature, to explain and analyze the factors influencing government officers' acceptance of e-Government services. The conceptual model, as well as providing a foundation for further empirical testing, will have some practical issue to government decision makers as it synthesizes much of the current research regarding to eGovernment acceptance into a single model. It will have important policy and strategy implications for helping government in increasing public officers' acceptance of eGovernment usage.

To this point, there have been few studies of e-Government in Cambodia. This study can be considered as a first step in the examination of e-Government in Cambodia1. The paper examines the various factors that contribute and challenge the implementation of e-Government. These factors are grouped into three main categories: 1) management, 2) infrastructure, and 3) human factors. In the context of the implementation of the Government Administration Information System (GAIS) in Cambodia, factors that potentially influence and challenge the progress of e-Government are explored. This exploration indicates that the contribution factors are political leadership and will, effective management within a complex and fragile environment, information and communication technology policy, and capacity development. At the same time, challenges critical to implementing e-Government include variations in support among leadership, the lack of high prioritization of (or even need for) e-Government at present, a poor information and communication technology infrastructure, a low rate of literacy, and a high turnover rate among government information technology staff.

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