2026-10-29 · Guardian Business · English source

How £100 vanishes in minutes: inside the ‘slot farms’ targeted in the budget

Real-world example for IB, A-Level, AP and IGCSE Economics essays: Taxes, subsidies and price controls, Externalities and the environment, Market power and competition policy

What happened

The UK budget imposes a 25% tax on adult gaming centres, and undercover reporting shows such venues drawing customers in with music and atmosphere, with one person losing £100 in about five minutes.

The economics

This illustrates government intervention through a tax on a demerit good: taxing gambling raises its effective price, discourages consumption and internalises the external costs of problem gambling. Students can show a tax shifting the supply curve up and reducing equilibrium quantity.

Figures to quote

  • 25% tax
  • £100
  • five £20 notes

Evaluation

However, demand may be inelastic — addicted consumers respond little to price, so the tax may not cut consumption much and could fall heavily on problem gamblers; if customers switch to less regulated online gambling, the tax's effect is weakened.

Practice question

Using the concept of externalities, evaluate the economic effects of a 25% tax on adult gaming centres.

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Where it fits in the syllabus

  • Taxes, subsidies and price controls: Indirect taxes, subsidies and maximum or minimum prices that governments use to change market outcomes.
  • Externalities and the environment: Costs or benefits that fall on third parties without being priced, such as pollution and carbon emissions.
  • Market power and competition policy: When a few firms control a market they can raise prices; governments use antitrust and regulation to protect competition.

中文版

发生了什么

英国预算案对成人游戏中心(老虎机厅)征收25%的税,记者暗访发现这些场所用音乐和氛围吸引顾客,有人在约五分钟内输掉100英镑。

经济学角度

这体现了政府对“罪恶品”(demerit goods)征税的干预逻辑:对赌博类消费加税可提高其有效价格、抑制消费,并把外部成本(问题赌博带来的社会成本)内部化。学生可以画出税率提高后供给曲线上移、均衡消费量下降的图形。

可以引用的数据

  • 25% tax
  • £100
  • five £20 notes

评估角度

但需求可能缺乏弹性——成瘾性消费者对价格不敏感,加税未必大幅减少消费,反而可能加重问题赌徒的负担;此外,若顾客转向不受监管的线上赌博,税收效果会被削弱。

练习题

运用外部性概念,评价政府对成人游戏中心征收25%税的经济效果。

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