Estimates for the demand for canned processed meat in Germany suggest that it is an inferior good. This implies it has a negative:
price elasticity of demand
cross-price elasticity of demand
income elasticity of demand
price elasticity of supply
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.