Men Writing as Women and Women Writing as Men

The activity is to do a research and find two authors, a female one that writes as male and a male one that writes as a female.
First example would be J.K Rowling, she is author of the famous Harry Potter fantasy series. In Harry Potter, the main character is a man, but the author is J.K Rowling, who is a woman.
Second example would be Roddy Doyle, Doyle is the author of "The Woman who walked into Doors (1996), this is a story of a battered wife, narrated by the victim (a woman).
The benefits of writing like this is that you have it from another perspective, a different gender. And the limitations are that you don't have enough experience to write in another gender.
This types of author try to change the perspective, it would be interesting to know how a woman thinks a man is and how a man think a woman is.