“…In international markets with rising uncertainty, such as the increasingly fierce Sino-US trade frictions, export volumes of the international market show a sharp decline, and the sustainable development of exports in emerging countries has been confronted with severe challenges. Meanwhile, the role of domestic institutional quality in affecting the sustainable development of exports in emerging countries should be paid more attention, since a recent cluster of work has confirmed institutional sources of comparative advantage, such as contract enforcement [1][2][3], financial development [4][5][6], legal environment [7,8], the flexibility of labor market [9], and the informal institution [10][11][12]. Moreover, for an emerging country, the formation of new domestic institutional comparative advantages also helps to address the external uncertainty of international markets by constantly enhancing its economic competitiveness.…”