Budget Line: It is defined as the combination of all the goods that a consumer can purchase, exhausting all his income. The formula for the budget line is: Here, is the quantity of good X. is the quantity of good Y. is the total income. is the price of good X. is the price of good Y. Giffen goods : All those goods whose quantity demanded increases with an increase in its price is known as Giffen goods It violates the law of demand which states that when prices increase, the demand for a good decreases It has an upward sloping curve which is generally due to the substitution effects. Example of Giffen good: consider a situation in which a poor guy uses cereals for all the necessary nutrients so, as the price of cereal increases, he demands less of other goods. Substitution effects: It states that the demand of a good increases, if the price of its substitute goods increase and vice versa. Take an example of tea and coffee, if prices of tea increase, then the demand for coffee increases. Income effects: It states that the demand for normal goods and the income are directly related which means that when the income increases, then the demand for normal goods also increases and vice versa. Inferior goods: It is a type of good in which the demand declines when the income of the consumer gets increased. Example: the demand for potato decreases, as the income increases because we prefer green vegetables at higher income.

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Chapter 10.A, Problem 13P

To determine

Concept introduction:

Budget Line: It is defined as the combination of all the goods that a consumer can purchase, exhausting all his income. The formula for the budget line is:

Here,

is the quantity of good X.

is the quantity of good Y.

is the total income.

is the price of good X.

is the price of good Y.

Giffen goods: All those goods whose quantity demanded increases with an increase in its price is known as Giffen goods

It violates the law of demand which states that when prices increase, the demand for a good decreases

It has an upward sloping curve which is generally due to the substitution effects.

Example of Giffen good: consider a situation in which a poor guy uses cereals for all the necessary nutrients so, as the price of cereal increases, he demands less of other goods.

Substitution effects: It states that the demand of a good increases, if the price of its substitute goods increase and vice versa. Take an example of tea and coffee, if prices of tea increase, then the demand for coffee increases.

Income effects: It states that the demand for normal goods and the income are directly related which means that when the income increases, then the demand for normal goods also increases and vice versa.

Inferior goods: It is a type of good in which the demand declines when the income of the consumer gets increased. Example: the demand for potato decreases, as the income increases because we prefer green vegetables at higher income.

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