Which one of the following is most likely to be a determinant of the price elasticity of demand for premium organic oat milk?
Availability of close substitute brands of plant-based milk
Change in the size of the consumer population
Increase in the cost of raw packaging materials
Number of unsold cartons of organic oat milk in supermarkets
119 exam-style questions on Edexcel A A Level Economics 1.2.3 Price, income and cross elasticities of demand. Each one has a worked solution and a mark scheme showing where the marks go.