Worksheets on OCR GCSE Economics 2.1 The role of markets, covering 2.1.1 What is a market, 2.1.2 Primary, secondary and tertiary sectors, 2.1.3 Factor and product markets, and 2.1.4 Specialisation and exchange, with answers. Print them, or work through one on screen. Write your working straight onto the paper and Genie marks it question by question against the mark scheme.