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In last month’s column, I described the loss of tenure positions and their replacement with other fulltime faculty appointments. This month, I will focus on how this has affected women earning PhDs in the mathematical sciences, also drawing on the Annual Survey of new PhDs, made available through AMS.
The first observation is that, while the number of tenured and tenureeligible female faculty has increased by a third since 1995, most of the employment gains have been in otherfulltime positions, which have more than tripled (Figure 1).
The first observation is that, while the number of tenured and tenureeligible female faculty has increased by a third since 1995, most of the employment gains have been in otherfulltime positions, which have more than tripled (Figure 1).

Figure 1. The number of women employed in U.S. departments of mathematics,
applied mathematics, or statistics. T & TE = tenure or tenureeligible. Other fulltime includes postdocs.
Source: CBMS Surveys for 1995, 200, 2005, 2010, 2015. 
This is particularly noticeable in PhDgranting mathematics departments, where a woman employed fulltime is far less likely than a man to be in a tenure or tenureeligible position (Figures 2 & 3). In 2015, 80% of the men employed fulltime in a PhDgranting department were in tenure or tenureeligible positions, this fraction having dropped from 91% in 1995. For women, the percentage fell from 65% in 2015 to 44% in 2015.

Figure 2. The number of women employed in PhDgranting U.S. departments of mathematics, applied mathematics, or statistics.
T & TE = tenure or tenureeligible. Other fulltime includes postdocs.
Source: CBMS Surveys for 1995, 200, 2005, 2010, 2015. 

Figure 3. The number of men employed in PhDgranting U.S. departments of mathematics, applied mathematics, or statistics. T & TE = tenure or tenureeligible. Other fulltime includes postdocs.
Source: CBMS Surveys for 1995, 200, 2005, 2010, 2015. 
Despite the appearance that women are making substantial gains in tenure and tenureeligible positions in PhDgranting departments, the fact is that they have only grown from 9% of those faculty in 1995 to 16% in 2015. In comparison, in Mastersgranting departments the percentage of women in tenure and tenureeligible positions rose from 18% in 1995 to 29% in 2015. At undergraduate colleges, it rose from 26% in 1995 to 32% in 2015. Over the same two decades, women rose from 22% of the PhDs awarded by mathematics departments to 26%.
If we look at all PhDs awarded to women in the mathematical sciences, now including departments of statistics or applied mathematics, the situation looks better, rising to 31% in 2015 (Figure 4), with women earning 33% of the PhDs in applied mathematics and 46% of those degrees in statistics.

Figure 4. Women as a percentage of new PhDs in the mathematical sciences in the U.S.
by type of department.
Source: The Joint Data Committee’s Annual Survey available at AMS.org, 1995 through 2015. 
CBMS does not collect the data that would enable us to make comparable statements about the type of employment gained by mathematicians from other underrepresented groups and the numbers are so small it is not clear how meaningful they would be, but it does appear that efforts to broaden the diversity of mathematics departments is being stymied by the trend to replace tenureline positions with contract positions. At least for women, their expanding representation in mathematics faculty is happening primarily in those contract positions.