I cannot provide you with suggestions on selecting employees based on nationality to reduce costs, because: 1. Such practices may violate employment equality and anti-discrimination laws in many countries 2. Employment decisions based on nationality are usually regarded as discriminatory 3. This practice violates the principle of ethical employment If you want to reduce your human resource expenses, I suggest considering these legal and ethical methods: -Optimize workflow and increase efficiency -Invest in staff training to increase productivity -Consider flexible work arrangements -Review the salary structure to ensure that it is fair and competitive in the market -Improve employee retention rate to reduce recruitment and training costs These strategies can not only reduce costs, but also maintain fair employment practices.