The main objective of this paper is to understand the relation between neighbourhood entitativity, group value or prestige and place identity.

Another aspect worthy of study is the connection between place identity and entitativity. As known from the Social Identity Approach (SIT), social identity is based on group distinctiveness and the value associated with the different groups to which people feel they belong. Thus, groups that are seen as distinctive entities in connection with a positive value, facilitate the process of identification (e.g., Castano, Yzerbyt, & Bourguignon, 2003; Yzerbyt, Castano, Leyens, & Paladino, 2000). But it is important on one hand to extend this, to gain new insights about this connection to place identity, and on the other hand, to explore the importance of the group value in this connection between place identity and perception of neighbourhood entitativity. In relation to the study of neighbourhoods, we can predict a neighbourhood perceived with high value and high entitativity to facilitate identification with place. And vice-versa, a low value and entitativity hampers identification with place. But the question is in relation to the other two possibilities: neighbourhoods with high value and low entitativity, and especially, neighbourhoods with low value and high entitativity. In this last case, SIT predicts social changes, through individual mobility, social creativity or social competition (Tajfel & Turner, 1979). As pointed out by Abrams (2006), when people live in an undesirable neighbourhood, perceived as having great unity, and the possibility to move is difficult or impossible, the possible reaction can include promotion of antisocial behaviour.

To test this relationship four neighbourhoods of Lisbon which vary in terms of prestige and entitativity were studied. A questionnaire was administered to 180 residents. The results confirm the hypotheses raised and allowed to explore the strategies used by people to achieve a positive identity even in situations of neighbourhoods negatively evaluated. In fact, we observed the use of several strategies as social creativity, social mobility, social competition, or out-group assimilation. The results were explored in terms of the consequences to the intergroup relationships.