Lipscomb J, Scheffler R M
Health Serv Res. 1975 Spring;10(1):14-35.
Data from an experimental dental program are used to develop a linear programming model of dental care delivery that the authors use to examine the economic implications of introducing expanded-duty dental assistants (EDDA's) in three types of dental practices. The authors examine the changes in productivity and profitability that result from hiring one or more EDDAs and conclude that a dentist in solo practice can more than double his net revenue by hiring one EDDA but will not increase his productivity further by hiring additional EDDAs. Two- and three-dentist groups also can increase revenue by hiring EDDAs, but, beyond a certain point, an inverse relationship exists between the number of auxiliaries hired and net revenue generated.
来自一个牙科实验项目的数据被用于建立一个牙科护理服务的线性规划模型，作者用该模型来研究在三种牙科诊疗机构引入扩责牙科助理（EDDA）的经济影响。作者考察了雇佣一名或多名EDDA所带来的生产率和盈利能力的变化，并得出结论：个体执业牙医雇佣一名EDDA可使净收入增加一倍以上，但雇佣更多EDDA并不会进一步提高其生产率。两名和三名牙医的团队雇佣EDDA也能增加收入，但超过某一点后，雇佣的辅助人员数量与所产生的净收入之间存在反比关系。
