“…In past literature, major pull factors related to origin attributes include population and income (Marrocu and Paci 2013), whereas important push factors on the destination side consist of income, price, infrastructure, and attraction endowment (Fourie and Santana-Gallego 2011; Khadaroo and Seetanah 2008). The specification of destination attractiveness is vital for SIM applications, and in previous studies, researchers introduced many measures of tourist attraction endowment, such as overall attraction level (Gabe, Lynch, and McConnon 2006), ethnic attraction level (Kliman 1981), shopping opportunity (Tiwari, Doi, and Kawakami 2006), climatic condition (Saayman and Saayman 2008), and coastline length (Eugenio-Martín, Martín-Morales, and Sinclair 2008). Lastly, in SIM applications, beyond geographic distance between origin and destination countries, common spatial separation measures include time distance, linguistic distance (Khadaroo and Seetanah 2008), political distance (Fourie and Santana-Gallego 2011), and cultural distance (Yang and Wong 2012a).…”