“…As expected, most of the studies focus on the regional scope (state, macro, and region) [16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31][32][33][34] . Four present a national dimension 2,[35][36][37] ; two deal with metropolitan regions 38,39 ; and only one focuses on a border region 40 .…”