This introduction is divided into five sections. The first sets the focus: abandonment as a social fact (Sect. 1.1). The second explains the approach: a neoinstitutional perspective on urban issues (Sect. 1.2). The third exposes the research question: what changes once we recognise abandonment as a social fact? (Sect. 1.3). The fourth is devoted to the methodology (Sect. 1.4). The fifth presents the structure of the book (Sect. 1.5).
FocusAs is well known, the problem of the abandonment of buildings is much discussed in the literature and public debate. However, the impression is that there is a certain imprecision in this regard, for example in the use of certain terms and concepts-e.g. abandoned, vacant, empty, derelict, deserted, decommissioned buildings-that are not always unequivocal. 1 Some alarming estimates of the phenomena considered here do not distinguish sharply among different cases (which are-for instance in Italy and particularly in urban situations-on totally different magnitudes). Certain debates tend to equate vacant/abandoned buildings with those buildings "at their owners' disposal but not used on a continuous basis" (Agenzia delle Entrate 2017a). In Italy, this category of buildings accounted for over 20% of the properties in 3630 municipalities in 2014. The main issue, however, is that this category is an even broader vague one, employed to accentuate the situation dramatically. It includes either merely empty 1