In today's knowledge era, intangible assets and resources are greatest wealth of firms. Furthermore, it is indisputable that knowledge is the most powerful weapon for firms. They are key sources of innovation, performance, growth, competitive advantage and even survival. Knowledge sharing has also strategic importance as it acts as a channel that allows to increase in intangible assets. Addressing these vital determinants of survival, we examine the relationships of these concepts and propose a conceptual model. This conceptual study makes four contributions to literature. First, the proposed model enlightens the relationships between knowledge sharing, intellectual capital and innovation performance. Second, the moderating effect of social capital on the relationship between knowledge sharing and innovation performance and the relationship between intellectual capital and innovation performance is assessed. Third, this study integrates different branches of the management literature such as knowledge management and innovation management. Finally, this research provides a critical conceptual insight for future researches.