Answer extracted from The Future of Utilities Podcast — listen to the full episode below.
Why Traditional Economics Fails to Explain Real Human Behavior
Traditional economics assumes people act rationally to maximize their own benefit, but real decisions are shaped by psychological, social, and environmental factors that operate involuntarily. People abandon complex forms they need or keep using inefficient appliances despite financial incentives—behaviors that reveal decision-making is far more complex than pure rationality suggests.
The gap between theory and practice matters deeply. When you encounter a form so complicated that you give up filling it out, even though you genuinely need it, you're not making a rational choice—you're responding to friction in your environment. The same logic applies to everyday utility decisions: a household might continue using an outdated dishwasher, knowing a water-efficient model would save them money over time, yet the inertia of routine and the psychology of loss aversion prevent the switch.
As Arminak Antonian explains in The Future of Utilities Podcast, these behaviors are natural, not aberrations. Behavioral economics doesn't dismiss rationality—it acknowledges that human choice happens in a complex system where environmental cues and psychological defaults often override conscious deliberation.
Behavioral Economics: The study of how psychological, social, and environmental factors shape individual and organizational decision-making, moving beyond the assumption that people always act rationally. It combines insights from psychology and economics to explain why real-world behavior often diverges from traditional economic predictions.
Understanding this distinction is practical, not merely theoretical. A utility company that assumes customers will switch to efficient appliances simply because it saves money ignores the involuntary factors—habit, complexity, inertia—that actually govern behavior. Antonian's work at Thames Water demonstrates how behavioral science can redesign customer interactions to reduce friction and align incentives with human psychology rather than fighting it.
"Awareness raising alone is not really going to do the job because it assumes a rational model of the customer."
Arminak Antonian — Head of Behavioral Economics at Thames Water. An economist by training, Antonian held academic positions at Cardiff Business School and as a professor of economics in China. He has worked extensively with governments and the UN across multiple countries, including Armenia, Kyrgyzstan, Tajikistan, Uzbekistan, and Croatia, applying behavioral science to real-world challenges ranging from health screening uptake to tax compliance and environmental consumption patterns.
The implications extend beyond water efficiency. If telling people "save money by switching" doesn't work, what does? Antonian's research at Thames Water has tested multiple intervention strategies with thousands of customer households, discovering that financial framing consistently outperforms environmental messaging in driving measurable behavior change. The episode explores specific A/B testing methodologies and the role of choice architecture in shifting customer decisions.
Moving Beyond Awareness into Action
Traditional campaigns assume the customer is a decision-maker sitting down to weigh pros and cons. In reality, most behavior is automatic. A person scrolling through a lengthy online form experiences cognitive overload and abandons it—not because the form lacks merit, but because the environment defeated the intention. Behavioral economics calls this the difference between intent and execution, and it's where most interventions fail.
The solution isn't more information. It's removing barriers, simplifying choice, and designing the decision context itself. This is why Thames Water's behavioral team exists: to observe why customers do or don't act, then redesign the system to make the desired behavior the path of least resistance. For utilities facing climate stress and rising demand, this approach offers a measurable alternative to hoping awareness translates into action.
Key takeaways
- Rational choice theory breaks down in practice because psychological and environmental factors operate involuntarily, outside conscious deliberation.
- People abandon forms and maintain inefficient habits not from irrationality but from friction, inertia, and the psychology of routine.
- Awareness campaigns alone fail because they assume rational decision-making; behavioral interventions must redesign the choice environment itself.
- Financial incentives and framing outperform environmental appeals in driving measurable behavior change in real-world testing.
See also
What role should gas networks play in managing peak demand in future energy systems?
Gas networks do an incredible job today in managing real peaks in demand, and this capability should remain central to future energy systems.
How should policymakers balance decarbonization, affordability, and energy security in the energy transition?
Energy policy should not focus solely on decarbonization but rather on the trilemma of decarbonization, affordability, and security.
What is the current status of gas network decommissioning in the UK?
The starting point for the conversation about getting rid of gas and decommissioning is not where the industry is at the moment.