| Independent variable | Mechanism | Related variables | Employment model characteristics | focus point | Individual needs | Dependent variable | Control variable |
| Employment mode (no fixed term or fixed term) | Work-stress | Work safety | Employment period | Specific work | Safety | Employee innovation behavior (outside role innovation and inside role innovation) | Sex, Working hours per week, Education level, Nature of the work, Number of contracts signed, Choice of place of work, Nature of the enterprise |
| Social identity | Organizational identity | Employment status | Specific organization | Sense of belonging | |||
| Social exchange | Transactional psychological contract | Employment responsibilities of both parties | Employee- organization interaction | Safety | |||
| Relational psychological contract | Self-esteem | ||||||
| Balanced psychological contract | Self-actualization |