First, most doctoral students are almost 30 years old.
Compared with young and promising undergraduates and graduate students, the motivation of struggle is weakened, and motivation is very important to the work of enterprises, because no matter how big an enterprise is (except some state-owned enterprises), it is inevitable to take efficiency as an indicator, and the pressure of performance, layoffs and job-hopping is inevitable.
Second, many positions in the enterprise do not require high professional knowledge, except for some high-tech R&D positions. Those who have obtained doctoral degrees have basically reached a very high level in the subdivided knowledge fields. This level of knowledge may be "wasted" in some positions in some enterprises.
Third, colleges and universities impart professional knowledge to students, and there is a professional promotion system (professional title) based on professional knowledge, which is more suitable for doctors with the highest academic qualifications and professional knowledge in a certain subdivision.
Fourth, although the salary level of colleges and universities is not high, the pressure of stability, performance and job-hopping is far less than that of enterprises. This three-month long winter and summer vacation is not available in other jobs. If you are teaching, you will have more free time. Some application professionals can work part-time in the community.
There are practical reasons why doctors don't want to enter big companies. At present, the treatment of big companies is really good, but the work pressure of big companies is relatively high. Compared with universities, the working environment is not so simple and the tasks are heavy. In addition, the number of doctoral students in large companies is relatively large, and many companies recruit directly from these people. In big companies, such talents are actually worthless. So they are more willing to go to colleges and universities, where they can show their value.