創新為企業帶來競爭優勢。企業僱用的人員是創新的重要因子。僱員的變化對創新會帶來正面或負面的影響。因此，本研究試圖分析公司員工的變化與創新績效之間的關係。為了做更深入的分析，我們採用兩個不同觀點來探討員工變動：員工與社會網絡。

員工流動率描述了員工的數值變化。之前的研究發現員工流動率率可能與公司的創新有倒U曲線的線性關係，但這些研究大多無法給出有力的實證證據。在我們的研究，離職率與創新的倒U曲線的線性關係得到了實證證明。因此，我們建議為了獲得好的創新表現, 企業應該找到最佳的員工流動率。

社會網絡的角度利用網絡中心性來衡量員工的移動所帶來的公司的網絡影響力。本研究發現員工的移動所帶來的公司的網絡中心性和中介中心與公司創新有顯著的正向關係。我們建議企業儘量從不同的行業與公司聘用人才, 以提高企業創新能力。

Innovation can give competitive advantage for the company to stay in the business and employee is one of the mechanisms that can affect innovation in the company. Changes of employees can bring either positive or negative impact on innovation performance. Therefore, this study tries to analyze relationship between employee changes and innovation performances in a company. In order to do more in-depth analysis, we consider 2 perspectives of employee changes that can affect innovation: turnover rate and social network perspective.

Turnover rate perspective used numerical changes of employee in the company. Prior studies found that the turnover rate may form an inverted-U curve-linear relationship with company innovation, but most of these studies cannot give strong evidence for the relationship. In our study, the results show that turnover rate significantly form inverted-U curve-linear relationship with innovation. Therefore, we suggest that companies should find a balanced value for their turnover rate to get the highest return in innovation.

Social network perspective used network centrality to measure the company’s network influence in employee movement. We hypothesize that network centrality can affect the talent acquisition process and innovation in the company. Past studies found that alliances among companies can affect innovation and betweenness centrality may moderate relationship between employee turnover and innovation. This study results show that closeness and betweenness centralities have significant positive relationship with innovation. Considering the result, we suggest that companies should improve social influence in employee network in order to attract talents and increase company innovation.

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