By briefly analyzing the descriptive statistics presented in Table 1, it is worth mentioning that the average real price charged
in online channels is way below the catalogue price, since the latter represents for each hotel the legal upward threshold (in case of a standard room). Moreover, some tangible attributes (namely, square meters and balcony) do vary in the time dimension, reflecting the way a hotel adjusts its offer, and in particular the offered attributes of its cheapest room option.