“…Service bundling has been a prevalent strategy in the tourism industry (Tanford, Erdem, & Baloglu, 2011), encompassing a broad spectrum of applications, such as hotels (Maier & Intrevado, 2018), IT-based platforms (Neidhardt & Werthner, 2018), or tourism recommender systems (Sertkan, Neidhardt, & Werthner, 2018). This preponderance is even more relevant these days, as people can design their desired combination of travel products by themselves.…”