This research explores the influence on consumer behavior of a long ignored characteristic of Man : spirituality. Given the growing demographics and economic power of older adults, understanding their consumer behavior appears essential. This research investigates the influence of the spirituality of older adults on their motivations to travel. The first chapter describes the tourist behavior of older adults and their motivations to travel. The results of literature review and a qualitative study reveal that there are seven categories of motivations to travel. The second chapter provides a conceptual framework for the study of spirituality, a state of the art research of the influence of spirituality on consumer behavior, and a description of the spirituality of older adults, which is characterized through the theory of gerotranscendance. The third chapter introduces the research model, the research hypotheses and the research design. The fourth and fifth chapters describe the empirical studies conducted to answer the research objectives (N=645). Empirical results are discussed. This research sets itself in the research framework on successful ageing. It contributes to having a better understanding of ageing, which is then considered as a process of continuous growth. It establishes a clear and complete conceptual framework for the study of spirituality in consumer behavior and offers a review of previously identified influences of spirituality. A Travel Motivations scale is created. Managerial recommendations are available.
