“…Gravity models are widely applied in economic literature to model international trade flows, international migration flows, and foreign direct investment flows (Anderson and Van Wincoop, 2003; Bergstrand and Egger, 2007; Eichengreen and Tong, 2007; Frankel and Romer, 1999; Head et al, 2010; Gil-Pareja et al, 2007; Karemera et al, 2000; Khalid, 2017; McCallum, 1995; Rose, 2000). Similarly, gravity models are extensively used in tourism literature, specifically for exploring determinants of international tourist flows and studying tourism demand (Fourie and Santana-Gallego, 2013; Gopalan and Khalid, 2022; Khadaroo and Seetanah, 2008; Khalid et al, 2020; Khalid et al, 2021a; Khalid et al, 2021b; Okafor et al, 2021d; Okafor et al, 2021e; Santana-Gallego et al, 2016).…”