HierarchyEU=GermanGDPSumofremainingEUmemberstatesGDPs
(4.1)

d=(XaXb)2+(YaYb)2
(4.2)

VcGerGer,j=(XGerXj)2+(YGerYj)2
(4.3)

(Model1):IAS19802021=VCGer+TrustEC_normal+HierGer
(4.4)

(Model2):IAS19802021=VCGer+TrustEC_low+HierGer
(4.5)

(Model3):IAS19802021=VCGer+TrustEC_high+HierGer
(4.6)

IAS = \frac{{\sum \nolimits_6^{i = 1}{C_i}}}{6}

Hierarchy = \frac{{GMY}}{{E{U_{rest}}\left( {from\,\,the\;date\;they\;joined} \right)}}

Value\,Convergenc{e_{a,b}} = \sqrt {{{\left( {{X_a} - {X_b}} \right)}^2} + {{\left( {{Y_a} - {Y_b}} \right)}^2}}

VcGe{r_{Ger,j}} = \sqrt {{{\left( {{X_{Ger}} - {X_j}} \right)}^2} + {{\left( {{Y_{Ger}} - {Y_j}} \right)}^2}}