Which one of the following statements regarding the implementation of a carbon emissions tax is a normative statement?
A carbon tax of £40 per tonne of CO2\text{CO}_2CO2 will reduce industrial greenhouse gas emissions by 12%12\%12% over the next decade.
The revenue generated from a carbon tax should be used exclusively to subsidise public transport.
A carbon tax increases the production costs of energy-intensive manufacturing firms.
Low-income households currently spend a larger proportion of their disposable income on carbon-intensive energy than high-income households.
123 exam-style questions on AQA A Level Economics 1.1 Economic methodology and the economic problem, covering 1.1.1 Economic methodology, 1.1.2 The nature and purpose of economic activity, 1.1.3 Economic resources, 1.1.4 Scarcity, choice and the allocation of resources, and 1.1.5 Production possibility diagrams. Each one has a worked solution and a mark scheme showing where the marks go.