“…A commercial turnover therefore tends to establish itself at the expense of a diversity of supply in the city centre, which constitutes an advantage with respect to shopping centres in outlying areas [Grimmeau et al, 2004]. This evolution is also accelerated by the development of mass tourism and the resulting "touristification" of shops [Wayens et al, 2020], which, however, is experiencing a serious setback with the covid crisis.…”