PLATFORM PROFILEAMZN
Amazon Marketplace
7.77
B-index (V3.1)
BLACK HOLE
Capture2.414
Escape0.311
Key Structural Insight
Gravity well of global commerce. 200M Prime with 91% renewal = structural lock-in at consumer scale.
Eleven-Parameter Profile
Data Depth9/10
Memory8/10
Action8/10
Process9/10
Network9/10
Closeness9/10
Portability3/10
Substitutability3/10
Human Fallback3/10
Org Depth8/10
Momentum8/10
Capture Escape Extended
V3.1 Decomposition
| Component | Value | Formula |
|---|---|---|
| CES₄ capture core | 0.8493 | CES(d, m, a, p) |
| Knowledge synergy σₖ | 0.8485 | √(d · m) |
| Operability synergy σₒ | 0.8485 | √(a · p) |
| Synergy boost | 1.2546 | 1 + 0.3·(σₖ + σₒ)/2 |
| Org-depth multiplier | 1.4000 | 1 + 0.5·o |
| Momentum multiplier | 1.2400 | 1 + 0.3·t |
| Total Capture | 2.4138 | c·(1+0.5n)·core·syn·org·mom |
| CES₃ escape core | 0.3000 | CES(x, s, h) |
| Feedback attenuation | 0.7028 | max(0.3, 1 − 0.35·core) |
| Total Escape | 0.3108 | ε + escCore · feedback |
| B = Capture / Escape | 7.77 | 2.414 / 0.311 |
Scoring Rationale
Seller: 82% FBA, non-portable reviews, Prime badge. Buyer: 200M+ Prime, 91% renewal, $1,400/yr spend. World's largest by revenue ($716.9B).
Parameter Sensitivity
MARGINAL B-INDEX CHANGE PER ±1 SCORE SHIFT
CLOSE9+1.73
FALL3-1.20
PORT3-1.20
SUB3-1.20
ACT8+0.71
MEM8+0.71
DATA9+0.66
PROC9+0.66
ORG8+0.55
NET9+0.54
MOM8+0.38
+ raises B (deepens lock-in)− lowers B (aids escape)