Arroyo's predecessor, Joseph Estrada, was successfully forced out of office during the EDSA Revolution of 2001 as he faced the first impeachment trial held in the country's history.
This could be a gesture of confidence in the official, as with US President George W. Bush's refusal of his Secretary of Defense Donald Rumsfeld's twice-offered resignation during the Abu Ghraib prison abuse scandal.
This can be used to great political effect, particularly as, subsequent to resigning, government ministers are no longer bound by collective responsibility and can speak with greater freedom about current issues.
[7] In academia, a university president or the editor of a scientific journal may also resign, particularly in cases where an idea which runs counter to the mainstream is being promoted.
In 2006, Harvard president Lawrence Summers resigned after making the provocative suggestion that the underrepresentation of female academics in math and science[8] could be due to factors other than sheer discrimination, such as personal inclination or innate ability.