“…Hjalager () has argued that the types of innovations influenced by interfirm linkages require more attention. However, although the existing tourism innovation literature has mentioned that interaction provides the interlinked firms with knowledge sharing, and opportunities for sales and new product development (Hall & Williams, ; Novelli, Schmitz, & Spencer, ), the only systematic research in this area has been on how different forms of interfirm linkages impact on the degree of novelty in tourism innovation (Martínez‐Pérez, Garcia‐Villaverde, & Elche, ; Sørensen, ). Yet degree of novelty is only one criterion for differentiating innovation types, with Adams, Tranfield, and Denyer () distinguishing between typologies based on newness, focus (product versus process), and attributes (comparability, compatibility, etc.).…”