Provide a thorough analysis of the importance and application of the article Nyberg, A. J., & Ployhart, R. E. (2013). Context-emergent turnover (CET) theory: A theory of collective turnover. Academy of Management Review, 38(1), 109-131”. prior to an employee turnover and several reasons for turnover: Provide the source information and the reference information for the article. Identify the key points and state why the key point(s) or issues are significant to the study of Human Resources Management.