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Good X is an inferior good since the amount bought decreases from X1 to X2 as income increases. In economics, inferior goods are those goods the demand for which falls with increase in income of the consumer. So, there is an inverse relationship between income of the consumer and the demand for inferior goods. [1] There are many examples of ...
If precondition #1 is changed to "The goods in question must be so inferior that the income effect is greater than the substitution effect" then this list defines necessary and sufficient conditions. The last condition is a condition on the buyer rather than the goods itself, and thus the phenomenon is also called a "Giffen behavior".
The most commonly used elasticity in economics, the price elasticity of demand, is almost always negative, but many goods have positive income elasticities, many have negative. A negative income elasticity of demand is associated with inferior goods; an increase in income will lead to a fall in the quantity demanded.
If the good is an inferior good, then the income effect will offset in some degree the substitution effect. If the income effect for an inferior good is sufficiently strong, the consumer will buy less of the good when it becomes less expensive. This is also known as a Giffen good (commonly believed to be a rarity).
The labour supply curve shows how changes in real wage rates might affect the number of hours worked by employees.. In economics, a backward-bending supply curve of labour, or backward-bending labour supply curve, is a graphical device showing a situation in which as real (inflation-corrected) wages increase beyond a certain level, people will substitute time previously devoted for paid work ...
The income effect on a normal good is negative, so if its price decreases, the consumer's purchasing power or income increases. The reverse holds when the price increases and purchasing power or income decreases. An example of inferior goods is instant noodles.
The income effect in economics can be defined as the change in consumption resulting from a change in real income. [1] This income change can come from one of two sources: from external sources, or from income being freed up (or soaked up) by a decrease (or increase) in the price of a good that money is being spent on.
The Income elastitcty of demand thus allows goods to be broadly categorised as Normal goods and Inferior goods. A positive measurement suggests that the good is a normal good, and a negative measurement suggests an inferior good. The Income elasticity of demand effectively represents a consumers idea as to whether a good is a luxury or a necessity.