Behavioral-surplus harvesting
also: surveillance capitalism · data extraction · behavioral surplus
Your behavior — clicks, dwell time, location, social graph — is captured as raw material well beyond what is needed to provide the service, then refined into predictions about you that are sold. The product is partly a means of producing that surplus.
Vulnerabilities it exploits
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Status-quo bias & the default effect
Robust evidence strength: Well-replicated or backed by strong primary evidence.Samuelson & Zeckhauser (1988); Johnson & Goldstein, “Do Defaults Save Lives?” Science (2003)
People disproportionately stick with pre-selected options. The default effect is robust and economically large (e.g., organ-donation opt-in vs. opt-out), which is exactly why pre-checked boxes and opt-out defaults are so powerful.
The evidence
What we actually know
“The Age of Surveillance Capitalism”
PublicAffairs
Argues surveillance capitalism ‘unilaterally claims human experience as free raw material,’ declaring the excess ‘proprietary behavioral surplus’ traded in ‘behavioral futures markets.’ A powerful theoretical lens; parts are contested by economists.
“The Attention Merchants”
Knopf
A historical account of business models that capture and resell human attention, linking advertising history to the modern feed. Strong framing source rather than experimental evidence.
In the wild
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A free app whose real business is the granular behavioral profile it builds and monetizes, not the nominal service it offers.
Zuboff (2019) on ‘proprietary behavioral surplus’ fed into ‘prediction products.’
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Default-on tracking and pre-granted permissions that most users never change.
The antidotes
What helps
Evidence-backed
- Strong privacy defaults and data-minimization (the GDPR/CPRA model) cut the surplus at the source rather than after the fact.
Practical / common-sense
- Audit and revoke app permissions, opt out of cross-app tracking, and prefer services whose business model isn’t your data.
Where the law stands
Different rules in different places
The rules are not the same everywhere — and they move. We show each jurisdiction separately rather than implying one global rulebook.
- EUIn force
GDPR (data minimization, purpose limitation, consent)
Limits collection to what is necessary and requires a lawful basis — directly constraining surplus harvesting.
- USIn force
California CPRA/CCPA
Grants opt-out of sale/sharing and limits dark-pattern consent; no comprehensive US federal privacy law yet.