What is imperfect substitutes in economics?

Imperfect substitutes, also known as close substitutes, have a lesser level of substitutability, and therefore exhibit variable marginal rates of substitution along the consumer indifference curve.

What is the difference between perfect substitute and close substitute?

🤔 Understanding substitutes Some products are very similar — called close substitutes — and they can directly replace each other. In the extreme, there are perfect substitutes, which are identical products with different branding. For some people, the two brands serve the same purpose and are easily interchangeable.

When two goods are perfect substitutes the indifference curve is?

If two goods are perfect substitutes, their prices (per comparable unit) must be the same if both are to be used: the elasticity of substitution between them is infinite, and any price difference will lead to all consumers choosing the cheaper. An indifference curve between them is a straight line.

What are examples of substitutes in economics?

Examples of substitute goods

• Coke & Pepsi.
• McDonald’s & Burger King.
• Colgate & Crest (toothpaste)
• Tea & Coffee.
• Butter & Margarine.
• Kindle & Books Printed on Paper.
• Fanta & Crush.
• Potatoes in one Supermarket & Potatoes in another Supermarket.

What is perfect substitution?

A perfect substitute is a situation where two goods are viewed as identical. Perfect substitutes are commodities such that it is impossible to build a brand whereby customers prefer your product. Producers of a perfect substitute must except a market price and typically have no influence on the price.

Are perfect substitutes normal goods?

Substitutes: Perfect substitutes are essentially interchangeable goods, where the consumption of one compared to another has no meaningful impact on the consumer’s utility derived. Substitutes are goods that a consumer cannot differentiate between in terms of the need being filled and the satisfaction obtained.

Are perfect substitutes monotonic?

Perfect substitute indifference curves are consistent with monotonicity.

When both the commodities are perfect substitutes?

If two goods X and Y are perfect substitutes, the indifference curve is a straight line with negative slope, as shown in Figure 41 because the MRSXY is constant. The value of this slope is throughout minus 1, and MRSXY = 1.

Are perfect substitutes strictly convex?

Indifference curves are convex if the individual likes to consume the two goods together. They are concave if the individual prefers to consume them separately. Two special cases include perfect substitutes and perfect complements. They are L-shaped if the individual regards the two goods as perfect complements.

What is a perfect substitute?

A perfect substitute can be used in exactly the same way as the good or service it replaces. This is where the utility of the product or service is pretty much identical. For example, a one-dollar bill is a perfect substitute for another dollar bill.

What is perfect complements in economics?

A perfect complement is a good that must be consumed with another good. The indifference curve of a perfect complement exhibits a right angle, as illustrated by the figure. Such preferences can be represented by a Leontief utility function. Few goods behave as perfect complements.

What is superior goods in economics?

A superior good is a normal good for which the proportional consumption increase exceeds the proportional income increase. In economics terminology, all goods with an income elasticity of demand greater than zero are “normal”, but only the subset having income elasticity of demand > 1 are “superior”.