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FH-PRIMARY INTERNAL-SHACKLE TESTS (sub-components, 2012-2025)
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[1] Within-country trend by FH sub-component (points of its 0-100 scale / yr):
   Electoral Process (A)          -0.528/yr (p 2.5e-06)***
   Freedom of Expression (D)*     -0.478/yr (p 9.6e-10)***
   Functioning of Govt (C)*       -0.382/yr (p 4.4e-06)***
   Political Pluralism (B)        -0.366/yr (p 5.1e-05)***
   TOTAL                          -0.342/yr (p 2.6e-08)***
   Associational Rights (E)       -0.250/yr (p 0.00089)***
   Rule of Law (F)*               -0.237/yr (p 0.00036)***
   Personal Autonomy (G)          -0.132/yr (p 0.0028)***
   (* = internal/horizontal & information dimensions central to the thesis)

[2] Deception channel — Free & independent media (D1): -0.362/yr (p 0.001)
    Govt anti-corruption safeguards (C2): -0.274/yr (p 0.0094)
    Govt transparency/accountability (C3): -0.308/yr (p 0.0065)

[3] Does last year's internal erosion predict THIS year's electoral-process decline? (N=2340)
    d_C_n_l1       -0.029 (p 0.261)
    d_F_n_l1       +0.088 (p 0.0209)**
    d_D_n_l1       -0.031 (p 0.238)