Microeconomics and Pricing

A duopoly is a form of oligopoly occurring when two companies control all or most of the market for a product or service.

Inelastic demand means price changes have minimal impact on quantity demanded. Essential business products (manufacturing components, critical supplies) often exhibit inelastic demand because operations can't easily substitute or reduce usage. This contrasts with elastic demand (price-sensitive) or derived demand (demand based on another product's demand). The key is that quantity remains relatively stable despite price fluctuations.

Elastic demand means that consumers are highly responsive to price changes. When price increases cause a significant decline in quantity demanded, the demand is considered elastic. This indicates that consumers have substitutes available or are sensitive to price changes. Inelastic demand would show little change in demand despite price increases.

The anomaly occurs because wine consumers use price as a signal of quality. When prices increase without any improvement in the wine itself, consumers interpret the higher price as indicating better quality and purchase more. This is different from most products where consumers assume higher price means less value for money.

Marginal utility is the additional satisfaction gained from consuming one more unit of a commodity. It is the difference in total utility when consumption increases by one unit, not the average or total.

Consumer equilibrium occurs when a consumer maximizes utility given their income constraint and prices. This means they can fulfill their needs optimally within their budget allocation, achieving maximum satisfaction.

 It is in Monopoly. In monopoly there is a single producer of a product or service and there are no substitutes of a product or service. Hence if the monopolist increases the price of its product, the consumer cannot demand for its substitutes. For example to travel by rail transport in India, the traveller has no other option but to travel in Indian Railways whether the ticket fare is low or high. Its because Indian Railways has monopoly in rail transport, hence the cross elastcity of demand is zero in this market. 

'Elasticity of demand' refers to the change in demand due to change in price. In case of necessities, there will be no effect of the change in price on the demand for these goods, which are considered as the basic necessities of life. Consumers will buy these necessities even when their prices will increase.

 Super normal profits are for the small period. In the long run all monopolistic firms earn normal profits. 

The fast moving consumer goods are monopolistic items having features of product differentiation, selling cost and others. The perfect competition is very rare to found in real life. The perfect example of monopoly is the Indian railway.

Normal goods are those goods whose demand increase with the increase in income and vice-versa. 

 It is known as relatively more elastic demand.  In relatively more elastic the change in quantity demanded is more than the change in price. Suppose the price of air - conditioner decreases by 10%, but quantity demanded increases by 20%, thus the change in quantity demanded here is greater than change in price, which is in excess of more than one unit that is 2. Thus it shows that is relatively more elastic demand. 

According to the law of demand, we only consider the effect of change in price on the demand for a commodity.The demand of a commodities increase with decrease in their prices and decrease with increase in their prices. 

 It is perfectly inelastic demand.  In perfeclty elastic demand even a minute change in price, causes an infinite change in quantity demanded. In perfectly inelastic demand even a greater change in price, causes no change in the quantity demanded. Thus perfectly inelastic demand is exact opposite of perfectly elastic demand. 

 A monopolistic firm do not have any rivals, therefore firm can raise prices, no such issues. Advertising is done for increasing sales and profit.