capitation
/ˌkæpɪˈteɪʃən/noun
mass noun
- the payment of a fee or grant to a doctor, school, or other person or body providing services to a number of people, such that the amount paid is determined by the number of patients, pupils, or customers按人收费：
the increased capitation enabled schools to offer pupils an enhanced curriculum
提高个人收费能使学校向学生提供更高质量的课程
as modifier income from capitation fees.按人收费所得的收入。
词源
early 17th cent. (denoting the counting of heads)： from late Latin capitatio 'poll tax'， from caput 'head'.