The office research in environmental psychology that was inspired by the non-territorial office experiments of Allen and his colleagues in 1970, and undertaken since the 1980s, deemed privacy in the open office setting problematic; however, experiments by Allen showed improvements in privacy. Why was privacy not seen as a problem in Allen's experiments? The non-territorial office in Allen was not limited to being open; in fact, it also incorporated a free-seating arrangement. Further exploration of Allen's experiments shows that a free-seating arrangement not only enabled employees to move about the office at will but also facilitated the adjustment of their mutual interaction. As a result, it was thought that privacy had actually improved. In other words, extracting an open setting, which is only one aspect of a non-territorial office space, is insufficient, and thus, free-seating arrangement must also be considered. Doing so increases the possibility of significantly remedying privacy problems.