Worksheets on OCR GCSE Economics 1.2 The basic economic problem, covering 1.2.1 Scarce resources and unlimited wants, 1.2.2 The economic problem, 1.2.3 Opportunity cost, and 1.2.4 Costs and benefits of economic choices, 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.