A useful article relating to protectionist policies http://www.bbc.co.uk/news/business-43226102 for all A Level Econ students, see where to find the relevant section with the specification for Edexcel, AQA and OCR:-
Edexcel spec reference 4.1.6 – Impact of protectionist policies on consumers, producers, governments, living standards, equality
AQA spec reference – The causes and consequences of countries adopting protectionist policies. 
OCR spec reference P25 – Explain the impact of methods of protectionism to include a diagrammatic explanation of tariffs and quotas.