Knowledge exists at different levels within an organization and is shared spontaneously in various environments
[26][1]. Knowledge management requires companies to manage organizational knowledge as corporate assets and make full use of knowledge creation and knowledge sharing as key organizational capabilities
[27][2]. Since Nonaka proposed the concept of knowledge sharing in 1991, academics and industry have paid increasing attention to the research and management of knowledge sharing among individuals, teams, organizations, and cross-organizations. Davenport and Prusak
[28][3] defined knowledge sharing as a voluntary behavior. They defined knowledge sharing as the conscious exchange of knowledge by individuals, not involving routine or structured information exchange. Wang
[13][4] believed that knowledge sharing refers to providing task information and skills, helping others and cooperating with others to solve problems, and developing new ideas and implementing policies or procedures. Bartol and Srivastava
[9][5] defined knowledge sharing as the sharing of information, ideas, suggestions and expertise related to the organization between individuals. Ipe
[15][6] argued that knowledge sharing between individuals refers to the process by which individuals transform their knowledge into a form that other individuals can understand, absorb, and use. Huang et al.
[29][7] divided knowledge sharing into tacit knowledge sharing and explicit knowledge sharing. The process of tacit knowledge sharing includes the process of team members sharing personal experiences, elaborating background knowledge and professional knowledge, and the characteristics of explicit knowledge sharing are that team members exchange ideas and knowledge in coded form. These studies show that while knowledge sharing has been examined from different perspectives and thus their definitions of knowledge sharing are different, there are some key elements in common: the type of knowledge shared, the method or channel, and the level wherein the knowledge is shared (individual, team and organization)
[30][8]. Individual knowledge needs to be transferred into team knowledge and then into organization knowledge through various methods so as to promote the achievement of organizational objectives
[15][6].
Knowledge sharing has a wide range of influencing factors. Many scholars have examined the behavior and process of knowledge sharing around social psychology, organizational and team characteristics, knowledge characteristics, motivation elements, and cultural characteristics
[6,13][9][4]. A variety of studies have suggested improving organizational culture and atmosphere, management support, rewards and incentives, team diversity, social networks, knowledge of intellectual property, perceived benefits and costs, interpersonal trust and justice, individual attitudes, and others in order to help improve knowledge sharing effectiveness
[3,6][10][9]. For example, Masa’deh
[31][11] believed that creating an atmosphere of mutual trust, openness, and sharing is a key success factor in creating a knowledge-sharing environment. Transformational leadership and transactional leadership also have an important ability to promote the knowledge-sharing process within an organization
[7][12]. Cabrera and Cabrera
[22][13] proposed that the establishment of a good incentive system and the improvement of employees’ self-efficacy are powerful measures to promote knowledge-sharing behaviors. Staples and Webster
[32][14] found that for teams of different structures (local, mixed and distributed), there is a strong positive correlation between trust and knowledge sharing. However, when the degree of task interdependence is low, this relationship is stronger. That is, trust plays a stronger role in a weakly structured team. Liu and Liu
[33][15] argued that individual self-efficacy perception can effectively promote knowledge sharing among R&D personnel. The research by Akhavan and Mahdi
[34][16] showed that social interaction relationships (structural capital factors), trust, reciprocity, and team identity (relationship capital factors) are significantly related to the willingness to share knowledge, and the willingness to share knowledge is further significantly related to knowledge-sharing behaviors (collecting knowledge and donating knowledge). Wu
[35][17] proposed that when employees are more satisfied with their knowledge-sharing environment, more knowledge-sharing behaviors will occur, and when the main driving force of knowledge sharing is economic (external motivation), employees may be more reluctant to share their knowledge. This line of research has thus generated an impressive array of literature on knowledge and knowledge sharing.