SORTING & PEER EFFECTSCORE◉ LIVE LAB
Granovetter Threshold
Each person has a join threshold; cascades depend on the distribution, not the average.
How it works
- Everyone carries a private join-threshold: 0, 1, 2, …
- Sort thresholds; the cascade stops at the first gap it cannot cross.
- One agitator (threshold 0) plus a smooth ladder tips the crowd.
Use → Protests, adoption, bank runs. Map thresholds before messaging.
Watch out → Averages lie: same mean threshold, wildly different outcomes.
Try it → Use the lab: nudge one threshold and watch a full cascade stall.
REDCAPE jobs → Explain · Predict
Free sources → Coursera M1 (Sorting & Peer Effects)
INTERACTIVE LABoriginal recreation — poke it
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
JOINED
20 / 20
MEAN THRESHOLD
9.5
Numbers are each person's threshold. Move person #2 from 1 to 2: the average barely changes, the riot vanishes.
Attach to a lattice — combines with
Different families, shared jobs. Disagreement between them is where insight lives.
DISTRIBUTIONS
Entropy & Uncertainty
Entropy scores surprise: equilibrium, cyclic, random and complex outcomes sit at different levels of uncertainty.
SHARED JOBS: EXPLAIN · PREDICT
GROWTHExponential & Solow Growth
Compounding plus capital, labor and ideas explain why some economies stall.
SHARED JOBS: EXPLAIN · PREDICT
NETWORKSPercolation / Tipping Points
Sparse links suddenly gel into a giant component — bank networks and blackouts tip fast.
SHARED JOBS: EXPLAIN · PREDICT