Small and micro enterprise papers can't write small and medium-sized enterprises. Because small and micro enterprises and small and medium-sized enterprises are different concepts, small and micro enterprises refer to enterprises with less than 20 employees and an annual turnover of less than 2 million yuan, while small and medium-sized enterprises refer to enterprises with less than 300 employees and an annual turnover of less than 30 million yuan. If the title and content of your thesis clearly require the study of small and micro enterprises, you should conduct research and discussion around small and micro enterprises instead of confusing small and micro enterprises with small and medium-sized enterprises.