中文摘要：

用户参与知识贡献是虚拟社区价值产生的重要来源和支撑。现有基于动机视角的研究,难以全面具体地解释个体参与知识贡献和信息分享的行为。通过引入就绪理论,研究发现用户参与知识贡献的动机、能力和角色清晰性正向显著地影响个体进行知识贡献的意向。此外,用户就绪三个维度之间的关系并非是孤立的,存在交互和强化影响,即能力和角色清晰性能强化动机和知识贡献之间的关系。

英文摘要：

Knowledge contribution was an important source for value creation of virtual community. Existing researches were mostly basing on motivation perspective. This perspective had its limitation on explaining individual＇s participation in knowledge contribution and information sharing. Through the introduction of user readiness theory,this paper found that individual＇s motivation,ability and role clarity were positively impacts on the knowledge contribution intention. And the three dimensions of user readiness theory were not isolate,they had interaction effect. That was,ability and role clarity would moderate the relationship between motivation and knowledge contribution.