Salary studies have been of great interest to researchers across many disciplines for many decades of which science Doctorates are no exception. This paper seeks to examine the factors which influence salary differences among individuals with science Doctorates in Italy. The study revealed from the regression that major factors influencing the differences in salary are Field of Science, Age of Completion, Country of Work, Contract Type, Gender as well as Mother's Education as the factors influencing on the differences in salary. These results suggested that performance is not the only factor which determines salary levels.
Doctorates, Heteroskedasticity, Regression, Salary
