This is the abstract of new paper by Fernanda Rivas published in the Bulletin of Economic Research (January 2013):
A number of papers with field data have found differences in the corrupt activities of males and females; nonetheless they have drawbacks that may be overcome in a laboratory experiment. The aim of this paper is to see experimentally whether women and men, facing the same situation behave in a different way, as suggested in the field-data studies or, on the contrary, whether they behave in the same way. The results found in the experiment show that women are indeed less corrupt than men.A draft (2008) is here.
Experimental economics: Gender and corruption.
See also: Women and budget deficits.