A: After on-the-job training, the enterprise obtains its own investment in training by paying employees a wage rate lower than their actual contribution to the total income of the enterprise. Therefore, only when specially trained employees continue to be employed by enterprises can enterprises recover the benefits of human capital investment. In this way, enterprises will inevitably have a strong economic motivation, that is, through various human resource management practices, try their best to reduce the turnover rate or resignation rate of these specially trained employees.

Similarly, trained employees also have the motivation to work in the enterprise for a relatively long time. This is because there are some special training elements in the on-the-job training that employees receive. Therefore, the wages earned by these specially trained employees in this enterprise are slightly higher than those they may get if they go to work in other enterprises. In this way, if they leave the enterprise after the training, they actually lose part of their income. Most specially trained employees may be willing to work in this enterprise for a long time, and their mobility tendency will be weakened. Therefore, specialized training is one of the important reasons for enterprises to change the labor force from variable input factors to semi-fixed production factors.

Some employment relationships in the labor market can indeed prove that enterprises are more interested in continuing to hire specially trained employees than those without special training. For example, during the economic recession, enterprises are generally reluctant to dismiss specially trained employees, and the unemployment rate of these employees rarely changes throughout the economic cycle. Because special training is often related to the continuous length of service of an employee in an enterprise, the older the qualifications of employees in an enterprise, the less likely they are to lose their jobs. When an enterprise has to lay off employees, it usually dismisses those employees who have stayed in the enterprise for the shortest time and at the latest.