## 2 Literature Review
### Organizational Climate Perspectives and PSC  
Organizational climate refers to employees' common perception of organizational policies, practices, and procedures [29]--reflecting the characteristics of an organization's or group's understanding of the employees' workplace experience. It is also a crucial element promoting occupational health and safety [30]. Safety climate and PSC both belong to the organizational climate concept and are an organizational resource. Safety climate is defined as a shared perception of the commitment and performance of employees, regarding safety policies, procedures, and practices [31]. Similar to the PSC, safety climate can also provide signals for employees' safety behaviors. Safety climate emphasizes physical health and safety, while PSC emphasizes mental health and safety [10]. PSC, which emphasizes psychological health and safety, has a greater impact on workers than just the safety climate [32]. PSC is a specific concept in organizational climate, describing the specific psychological health and safety climate. It is similar to the concepts of psychological safety and team psychological safety climates [10] in that it refers to a climate of freedom from psychological harm caused by workplace problems [11]. [PERSON] and [PERSON] [11] believe PSC to be a specific aspect of the organizational climate in referring to the common view concerning \"policies, practices and procedures to protect the psychological health and safety of workers\". Psychological health refers to the state of maintaining good communication and cooperation. The ideal state of psychological health is to maintain a normal personality, intelligence, emotion, and behavior, with a positive attitude. [PERSON] et al. view psychological health at work as an important occupational health and safety issue [10]. In many countries, legislation is in place to protect employees' psychological health and prevent the psychosocial hazards that cause workplace psychological injury. The PSC concept is viewed from the perspective of senior managers, focusing on the commitment, attitude, support, and behavioral practices of senior managers towards ensuring employees' psychological health and safety goals and avoiding harm caused by excessive work demands. PSC comprises four aspects [10; 33; 34]: firstly, senior managers providing support and commitment to the mental health and safety of employees [9], which reflects whether they can take relevant measures to prevent, stop, and solve mental health injuries to employees; secondly, when the organization's production goals conflict with the employees' mental health goals, senior managers prioritize employees' mental health and safety issues, which reflects the senior managers attaching high importance to the employees' psychological health and safety issues [35; 36]; thirdly, the top-bottom transmission and the bottom-top feedback of psychological health and safety issues are smooth and effective [9; 35]; fourthly, managers and employees at all levels can participate in the prevention and relief of work stress and job burnout as well as the cognition and solution of psychological health and safety problems [37; 38; 39; 40]. From the perspective of employees, the working environment, working conditions, management system, salary level, interpersonal relationships, occupational equity, communication channels, and work requirements provided by the organization are important factors affecting PSC. Previous studies showed that aggregating employees' knowledge of PSC to the team or organizational level can predict job design and psychological health, even when the PSC is estimated solely from the perceptions of other workers in the group [41]. Research into PSC has been scarce to date in China, although there has been some localized PSC-related theoretical research. [PERSON]'s [42] research into the dimensions and mechanism of the psychological and social security atmosphere, for instance, investigated the internal nursing teams of several hospitals in three Chinese cities; [PERSON] et al.