“…For example, port infrastructure proxy, quay length, and port gantries (Cullinane et al, 2005), terminal area (Yeo, 2010), and port berths (Deng et al, 2013). For international trade proxy, cargo import and export were previously used by (Bottasso & Conti, 2010), container throughput (Bottasso et al, 2014), transshipment (Boopen, 2006), for economic growth proxy GDP (Song & Mi, 2016), GDP per capita (Park et al, 2019), urban population, and Annual wage income (Li, Liu et al, 2018).…”