The purpose of this paper is to introduce, define and test a theoretical model which explains elderly people's use of urban shopping centres as places for social exchange. We suggest that elderly people use shopping centres to satisfy social and leisure are individual or predisposing variables and environmental or encouraging variables which differentiate elderly people who engage in this activity. Using a secondary data analysis of a probability sample of 300 non-institutionalized elderly people in Montreal, we found that mallingering is an activity that 67 per cent of this sample do in three shopping centres in this city. Predisposing variables such as age, gender, education and feelings of loneliness, along with encouraging variables such as design and ambiance of the centre are related to this activity. Based on these findings, we suggest that this model contributes to our understanding of the leisure activities of non-institutionalized elderly people.