“…The gravity framework has become so popular that it has been leading the trade flow literature for a long time under concepts of “static” gravity in the past and “dynamic” gravity in recent time (Koo et al 1994; Anderson and Marcouiller, 2002; Rose, 2005; Hattari and Rajon, 2009; Kabir and Salim, 2010; Yu, 2010). This third kind of literature uses an augmented gravity equation with trade-facilitating factors as well as a trade-obstructing factor in the same equation (Srivastava and Green, 1986; Cyrus, 2002; Dixon and Moon, 1993; Marrow and Tabares, 1998; Groot et al , 2004; Linders et al , 2005; Levchenko, 2007; Martin et al 2008; Fratianni, 2009; Gourdon, 2009; Dutt and Traca, 2010; Musila and Sigue, 2010; Horsewood and Voicu, 2012; Zelekha and Sharabi, 2012; Ali and Mdhillat, 2015; Galkin et al 2018; Devadason et al 2018; Mnasri and Nechi, 2019; Wu et al , 2016; Baier et al 2017; Aziz et al 2018; Hasiner and Yu, 2019; Saputra, 2019).…”