The rapid expansion of the bioplastics sector has led to a significant reallocation of industrial corn starch away from food and animal feed production towards the manufacture of biodegradable packaging. This competition for corn starch between food production and packaging manufacturing indicates that the demand for corn is best described as:
joint demand
derived demand
composite demand
complementary demand
45 exam-style questions on OCR A Level Economics Demand. Each one has a worked solution and a mark scheme showing where the marks go.