| With the rapid development of economy,China has entered the ranks of science and technology innovation-oriented countries from science and technology catch-up,and the competitive pressure of enterprises in the real environment is also increasing.In order to reduce the external competitive pressure,it is easy for enterprises to transfer this pressure to employees,which increases the work pressure of employees.Especially in small and medium-sized enterprises,the role overload of employees is common,which has attracted the attention and research of scholars.Reviewing the past research,the current research conclusions and explanations on the impact of employee role overload have not been unified,and the research on the dual mechanism of role overload is scarce.On the one hand,scholars and experts in the field of occupational health research believe that job stress will threaten the health of employees,so the main impact of role overload is negative.On the other hand,scholars and experts in the field of stress cognitive assessment believe that role overload is often regarded as a challenging stress by employees,so as to respond positively to overloaded work tasks and role requirements.In order to integrate the research conclusions on role overload,based on the Cognitive Evaluation Theory,this study attempts to explore the dual mechanism of role overload from the two paths of employees’ perceived ’exploitation’ and’developmental human resource practice’.This paper reads and combs the relevant literature in the past,and discusses the six variables of this study in detail.From the Cognitive Evaluation Theory,this study takes employee perceived exploitation and perceived employee development human resource practices as mediating variables,and growth need strength as a moderating variable to explore the dual response mechanism of role overload.Through the questionnaire survey method,362 valid sample data were collected,and the following conclusions were drawn by empirical analysis: First of all,role overload can positively affect job burnout through employee exploitation perception,and can also positively affect thriving at work through employee developmental human resource practice perception;secondly,the intensity of individual growth need strength plays a moderating role in the role overload of employees.Employees with high growth need strength are more likely to regard role overload as an opportunity provided by the organization for their career or work development practice rather than organizational exploitation,and then generate positive attitudes and behaviors to cope with stress.To a certain extent,this study enriches the theoretical research on role overload,thriving at work,perceived employee development HR practices,and also provides strong management enlightenment for organizational stress management and management practice. |