When an international firm follows a strategy of choosing only from the nationals of the parent company it is called?

When an international firm exclusively hires nationals from its parent company for its operations abroad, this strategy is referred to as an "ethnocentric" approach. This practice often aims to maintain control and ensure that the company's corporate culture and practices are consistently applied across all locations. However, it can also lead to a lack of local insight and may hinder the firm's ability to adapt to local markets.