Demand rises when income falls (negative income elasticity)
Demand falls when income rises
factors influencing income elasticity of demand
During a recession wages usually fall and demand for inferior goods rises while demand for luxury goods falls
During a period of economic growth and rising wages, demand for luxury goods increases while demand for inferior goods decreases
Other influences on income include minimum wage legislation, taxation, increased international trade
If a business can determine YED for its products and can accurately predict changes in income then it can plan whether to increase or decrease production
Production planning is easier when YED is relatively inelastic as demand is likely to be more constant
Understanding the income elasticity of demand is useful to businesses as it can help them plan their production and products
product planning
The economy goes through different stages over time from recession to recovery and growth and so incomes will fluctuate
This is known as the Business Cycle
product planning
During a recession producers of inferior goods will benefit from higher demand, but will lose out when incomes rise and consumers return to normal goods