This phenomenon usually falls under the category of "labor cost arbitrage", that is, companies reduce overall labor costs by taking advantage of labor price differences in different countries or regions. Specifically, companies may consider the following aspects: 1. Differences in wage levels in different regions: The economic development level, living costs and labor market conditions of different countries are different. In less developed countries with lower living costs, the average wage level is usually lower. If companies transfer part of their production, services or other business links to these countries, they can save money on labor costs. 2. Labor supply and market competition: In some countries, the labor supply is relatively sufficient. When local employment competition is fierce, employers may be able to attract a sufficient number of workers at lower wages when recruiting. Companies will take advantage of this supply and demand situation to achieve cost advantages under the premise of complying with local labor laws and regulations. 3. Outsourcing and multinational operations: With the development of globalization, many companies adopt multinational operations or outsourcing models to transfer part of their business to countries with lower labor costs. This not only helps to reduce direct human resource expenditures, but may also bring tax incentives or other policy support. 4. Matching skills and salaries: Although the overall wage level in some countries is relatively low, their labor force has a high cost-effectiveness in specific skill areas (such as software development, customer service, manufacturing, etc.). By recruiting professionals in these fields, companies can reduce human resource expenses while ensuring work efficiency. It should be noted that when companies conduct cross-border labor allocation, they usually consider a variety of factors such as market supply and demand, cost-effectiveness and strategic layout, rather than just the single factor of "selecting a specific nationality". At the same time, this approach also requires strict compliance with the labor laws, anti-discrimination laws and international labor standards of relevant countries and regions to ensure legal and compliant operations and maintain the social responsibility and reputation of the company. In short, through global resource allocation and comparison of the costs and benefits of labor in different regions, companies can achieve overall labor cost reduction while ensuring business quality and operational efficiency.