The assignment content involves a group research and critical analysis review on International Human Resource Management (IHRM). The studies reviewed focus on performance management in Polish companies that are internationalizing their market activities. The findings suggest that most companies focus on the process rather than results, and supervisors and employees are highly involved in the appraisal process. The studies also highlight the importance of cordial relationships between subordinates and superiors for effective performance management. Additionally, the research shows that companies have adopted performance-based compensation structures, which may act as a motivation for employees to work harder, boosting company performance. Overall, the studies contribute to the broad knowledge on IHRM by emphasizing the significance of employee satisfaction and participation in ensuring a competitive advantage.