What types of goods have an income elasticity greater than 1, and how does this affect consumer behavior and purchasing patterns?

Goods with an income elasticity greater than 1 are considered luxury goods. This means that as income increases, the demand for these goods increases at a proportionally higher rate. This can lead to changes in consumer behavior, as individuals may choose to spend more on luxury items when their income rises. Additionally, consumers may be more likely to cut back on luxury purchases during economic downturns or when their income decreases.