The UK government has unveiled a plan requiring supermarkets to promote healthier food choices to curb obesity and ease NHS pressures.

In an effort to address the rising economic burden of obesity—costing the NHS £11 billion annually—the government’s new initiative targets negative consumption externalities by nudging consumer behaviour through the retail sector. Supermarkets will be required to improve the nutritional value of average shopping baskets, with those failing to meet targets facing potential financial penalties. This preventative strategy aims to reduce third-party costs associated with obesity-related illnesses such as diabetes and heart disease. By incentivising healthier consumption, the policy seeks to internalise external costs and promote long-term public health, lessening pressure on healthcare services.

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1. Explain how the government’s use of product placement and promotional changes in supermarkets can act as a "nudge" to influence healthier consumer choices.

2. Discuss how information failure and negative consumption externalities contribute to obesity in the UK, and how the proposed healthy food standard could help correct this market failure.

3. Evaluate the likely effectiveness of the UK government’s plan to reduce obesity through supermarket-based interventions. Consider both the advantages and potential limitations of this policy approach.