Figure 4
The vertical axis is labeled “Development degree (Density)” and the horizontal axis is labeled “Relevance degree (Centrality)”. The map is divided into four quadrants by dashed horizontal and vertical lines. Each quadrant represents a different thematic category: “Niche Themes” (top-left), “Motor Themes” (top-right), “Emerging or Declining Themes” (bottom-left), and “Basic Themes” (bottom-right). Individual keywords appear as small text labels positioned at their corresponding density and centrality coordinates. Quadrant: Niche Themes (Top-Left) The first cluster includes the keywords: “opportunities”, “biodiversity”, and “micro entrepreneurship”. The second cluster includes the keywords: “culture” and “responsibility”. The first cluster includes the keywords: “models” and “sizes”. Quadrant: Motor Themes (Top-Right) This quadrant contains terms with both high density and high centrality, representing well-developed, influential themes. The first cluster includes the keywords: “authenticity”, “social media”, and “sustainable development”. The second cluster includes the keywords: “innovation”, “consumption”, and “demand”. The third cluster includes the keywords: “countries”, “growth”, and “destination”. The fourth cluster includes the keywords: impact, management, and tourism. The fifth cluster includes the keywords: model, satisfaction, perceptions. The sixth cluster includes the keywords: hospitality, sustainable tourism, and employment. Quadrant: Emerging or Declining Themes (Bottom-Left) This area shows terms with low density and low centrality, indicating emerging or weakening topics. The first cluster includes a keyword: “thinking”. The second cluster includes the keywords: “livelihoods” and “determinants”. The third cluster includes the keywords: “meta-governance”, “power”, and “validity”. Quadrant: Basic Themes (Bottom-Right) These themes have high centrality but lower density, representing foundational yet less developed topics. The first cluster includes the keywords: “corporate social-responsibility”, “sustainability”, “panel-data”. The second cluster includes the keywords: “progress”, “people”, and “accessible tourism”. The third cluster includes the keywords: “2030 agenda”, “island”, and “politics”.Strategic diagram of density and centrality (WoS keywords-plus). Source: Developed by authors