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.*Related content and download information correct at time of download. Design/methodology/approachThis paper was an empirical study based on structural equation modelling (SEM) with a sample of 293 employees from 31 high-technology firms in China. FindingsThe result indicated that (1) affective commitment had a significant positive effect on OPO but no effect on KPO; (2) OPO was positively related to both common and key knowledge sharing while KPO exerted a negative impact on both; (3) common knowledge sharing was positively related to key knowledge sharing; (4) the relationship between affective commitment and key knowledge sharing was multi-mediated by OPO and common knowledge sharing. Originality/valueOPO and KPO play an essential role in transferring the effect of employees' affective commitment to common knowledge sharing and key knowledge sharing, which unravels the blackbox of how effective commitment affects knowledge sharing.

One of the hallmarks of human society is the ubiquitous interactions among individuals. Indeed, a significant portion of human daily routine decision making is socially related. Normative economic theory, namely game theory, has prescribed the canonical decision strategy when "rational" social agents have full information about the decision environment. In reality, however, social decision is often influenced by the trait and state parameters of selves and others. Therefore, understanding the cognitive and neural processes of inferring the decision parameters is pivotal for social decision making. Recently, both correlational and causal non-invasive neuroimaging studies have started to reveal the critical neural computations underlying social learning and decision-making, and highlighted the unique roles of "social" brain structures such as temporal-parietal junction (TPJ) and dorsomedial prefrontal cortex (dmPFC). Here we review recent advances in social decision neuroscience and maintain the focus on how the inference about others is dynamically acquired during social learning, as well as how the prosocial (altruistic) behavior results from orchestrated interactions of different brain regions specified under the social utility framework. We conclude by emphasizing the importance of combining computational decision theory with the identification of neural mechanisms that represent, evaluate and integrate value related social information and generate decision variables guiding behavioral output in the complex social environment.

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This thesis starts from the fuzzy sets and related concepts of Psychological Contract which includes its notion, content, dimension, formation and violation of the Psychological Contract. The writer puts forward some opinions on the basis of previous research achievements by native and foreign scholars. At the same time, the drawbacks, research focal points and trends in the future are pointed out.

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