Research Article

Reconstruction Rating Model of Sovereign Debt by Logical Analysis of Data

Table 3

Decision tree of the year 2013.

RatingYear 2013
ClassDecision tree

AAA(G ≥ 47058.30, PA ≤ 19.40), OR (G ≥ 42861.50, EX ≤ 68.985, GS ≥ 24.62)
AAP(G ≥ 35760.90, CG ≤ 102.88, GG ≤ 1.515), OR (U ≥ 78.615, M ≥ 122.63, R ≥ 1443740000000)
AA(CG ≤ 118.525, PPP ≤ 10.545, G ≥ 35760.90), OR (G ≥ 45717.70, U ≤ 90.575, CG ≤ 118.52)
AAM(PA ≤ 20.81, CG ≤ 118.52, G ≥ 23758.60), OR (G ≥ 23029.80, CG ≤ 63.955, PA≥14.835)
AP(G ≥ 15203.90, GG ≥ −0.96, PA ≤ 19.40), OR (IV ≥ 32.155, I ≥ 2.805, G ≥ 15172.90), OR (G ≥ 15172.90, PPP ≥ 0.81, R ≥ 3240000000), OR (UN ≥ 3.05, PA ≤ 21.59, IV ≥ 35.055)
A(U ≥ 78.615, PPP ≥ 0.505, G ≥ 15203.90), OR (PA ≤ 19.40, GG ≥ −0.96, G ≥ 15203.90)
AM(U ≥ 72.18, G ≥ 15203.90, PPP ≥ 0/685), OR (PA ≤ 19.40, GG ≥ 0.305, CG ≥ 51.565), OR (CG ≤ 58.835, IV ≥ 31.855, EX ≥ 54.065), OR (UN ≤ 13.55, I ≤ 4.02, EX ≥ 74.515), OR (SD ≤ 57.89, IV ≥ 31.85.5, PA ≤ 19.68)
BBBP(I ≤ 4.24235, R ≥ 43160000000, G ≥ 5808.70), OR (CG ≤ 50.22, I ≤ 3.13, G ≥ 9139.48), OR (I ≤ 2.685, C ≥ −3.66, E ≥ 28.825)
BBB(G ≥ 10738.50, I ≤ 5.125, UN ≤ 15.95), OR (IV ≤ 23.88, TD ≥ 11.425, CG ≤ 116.03), OR (IM ≤ 31.14, GG ≤ 1.46, EX ≤ 41.555)
BBBM(PA ≤ 34.91, CG ≤ 67.12.71, SD ≤ 68.87), OR (PPP ≤ 6.405, EX ≥ 38.815, G ≥ 5669.61), OR (GS ≥ 21.57, GS ≤ 23.945, U ≤ 94.895)
BBP(TD ≥ 6.66, GS ≥ 18.72, IV ≤ 32.025), OR (G ≥ 5669.61, IV ≤ 39.53, IV ≥ 20.625), OR (GS ≥ 17.485, PA ≤ 29.015, I ≤ 6.735), OR (GG ≤ 1.46, R ≥ 4830000000, C ≥ −3.37)
BBNo case
BBM(IV ≥ 22.675, EX ≥ 26.235, GG ≤ 3.91), OR (IV ≥ 25.265, I ≤ 9.835, TD ≥ 10.365), OR (SD ≥ 7.53, I ≤ 5.09, PG ≥ −0.53), OR (PPP ≤ 266.50, PG ≤ 1.425, IV ≥ 25.265)
BP(UN ≥ 4.35, GS ≥ 13.82, C ≤ 3.65), OR (R ≥ 2505000000, M ≥ 60.91, C ≥ −8.36)
B(G ≥ 5808.70, GS ≥ 12.985), OR (IV ≤ 39.53, C ≥ −8.905)
BMNo case