It's hard to distinguish bias from genuine preconceptions based on experience - for that one would need gender neutral data that is impossible to obtain. The reverse kind of gender bias could be found in divorce custody cases for example. Maybe one could do an experiment in online job marketplaces: change the gender of a large number of work providers and observe how payouts change. In any case this was a shallow and…
Do you really think that the problem is that enough studies haven't been done?
The linked article mentions a study on the gender pay gap in academia[0], the results section of which includes
"After
accounting
for [
underrepresentation of women at the full Professor level
allocation of faculty members across departmental units, and experience]
there
remains
an unexplained
female
pay
disadvantage
of
about
$3000.
This
finding
is
robust
to
alternative
specifications
of
the
gender
gap
decomposition."
and later "... the
female
salary
disadvantage
found
in
the
study
can be
interpreted
as
a
lower
bound."
There is a similar study based on results from the financial industry, which if anything is even more extreme[1]
"The gender pay gap for annual gross earnings in the sector is 60 per cent."
"There is a gender gap of 80 per cent for performance-related pay"
"The gender pay gap in finance sector companies cannot be explained away as a
historical legacy. Analysis of salaries for new recruits shows that in 86 percent
of the cases reported to us, women have lower salaries than men."
"In 63 per cent of cases more than half of all job grades/categories exhibited a
significant gender pay gap."
[0] http://www.facultyassociation.ubc.ca/docs/news/GenderPayEqui...[1] http://www.equalityhumanrights.com/uploaded_files/financial_...