Why do some primary school teachers in Beijing need local students and some are not limited to students?

Unlimited students are to attract a large number of teachers to apply locally, and local students are to solve the employment problem of local people. The recruitment of primary school teachers in Beijing restricts the number of students in order to alleviate the employment pressure of primary school teachers in Beijing and promote employment; The purpose of unlimited students is to attract a large number of outstanding teachers to Beijing as teachers. Beijing is the capital of People's Republic of China (PRC). One of the four municipalities directly under the Central Government and the second largest city in China. It is a national political center, cultural center, international exchange center and scientific and technological innovation center.