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Enrichment

Enrichment Economics: Harvesting Behaviour: The Hidden Economics of 'Free' Digital Services

Geoff Riley

3rd July 2026

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In traditional economics, firms extract raw materials from the earth to manufacture products. In the 21st century, the most lucrative raw material isn't oil, lithium, or timber—it is human experience. This is the foundation of "surveillance capitalism," a term coined by Harvard academic Shoshana Zuboff, which describes a market structure where our personal data is extracted, processed, and fiercely monetised.

To understand the underlying economics, you must look past the illusion of the "free" service. When you use a mapping app or a social media platform, the service requires some basic data to function. However, these platforms sweep up vastly more information than strictly necessary—tracking how long you hover over an image, your precise location patterns, and even your typing speed. Zuboff calls this excess data "behavioral surplus."

This surplus is fed into advanced machine-learning algorithms to create highly accurate predictive models of your future choices. These predictions are then sold in behavioral futures markets to advertisers, insurers, and financial institutions. The platforms are not simply selling your data; they are selling certainty about your future actions.

This economic model is now deeply embedded in everyday UK life. Consider the domestic car insurance market. The proliferation of "telematics" or black-box insurance policies, particularly for young British drivers, is a prime example. Insurers monitor braking severity, cornering speed, and late-night driving habits. While marketed as a tool to lower premiums for safe drivers, it perfectly illustrates surveillance capitalism: the firm extracts your behavioral surplus to eliminate their own risk, using algorithmic pricing to penalize those who deviate from the model.

We also see this dominating the UK high street. Loyalty schemes like the Tesco Clubcard or Sainsbury's Nectar card have evolved from simple reward programs into sophisticated data-harvesting operations. By gating standard prices behind mandatory loyalty cards, supermarkets compel shoppers to hand over granular, itemized data on their household consumption. This data is then aggressively monetized through targeted retail media networks and third-party partnerships.

Surveillance capitalism introduces an unprecedented level of information asymmetry into the economy. In a traditional market, buyers and sellers share roughly equal knowledge. Today, tech platforms know our vulnerabilities, income brackets, and psychological triggers, while we know almost nothing about how their algorithms operate.

For students of economics, this represents a profound structural shift. The consumer is no longer the customer; they are the raw material. The actual customers are the data buyers, and the product being traded is the ability to predict, nudge, and modify human behaviour.

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Geoff Riley

Geoff Riley FRSA has been teaching Economics for nearly forty years. He has over twenty years experience as Head of Economics at leading schools. He writes extensively and is a contributor and presenter on CPD and Revision conferences in the UK and overseas.

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