Behavioral science · construct
The strength of weak ties
Mark Granovetter, 1973
Granovetter asked how people actually found their jobs and got a surprising answer: not usually through close friends but through acquaintances — the weak ties. Close contacts tend to know what you already know, because you all move in the same circle. It is the weak tie, bridging into a different cluster, that carries the novel information across. Weakness, structurally, is exactly what makes the tie useful.
Working definition
Information and opportunity flow disproportionately through weak ties, because strong ties tend to share the same redundant knowledge.
Where Vela uses this
This is foundational network thinking and a useful counterweight inside the adoption set: weak ties move information, but — as complex contagion adds — they may not move costly behavior the same way. Vela includes it for the structural literacy it gives the overconfident reader who assumes influence flows through closeness. Pairs with complex contagion and diffusion of innovations.
Origin & lineage
Granovetter ('The Strength of Weak Ties,' 1973) → structural-holes theory (Burt, 1992) → a cornerstone of social-network analysis.
Where it shows up in Vela
Magazine
Related concepts
- Complex contagion
Reads against — Weak ties move information; behavior change wants strong, reinforcing ties.
Scholars
Honest framing
The original evidence was about information flow in job search; extending it to every kind of influence overreaches, which is part of why complex contagion exists. Vela keeps the claim to its structural core.