Doing price discrimination by the firm is the worth, if the profit earned by the segregated market is more than the combined market. This all will depend on the demand of the submarkets. In the sub market consumer relates with the inelastic if he is charged by the firm by the higher prices and relates with the elastic if he is charged by the lower prices of the goods.
Doing discrimination in the prices by the firm are beneficial for both the firms and the consumers by that depends on the different situations of the market. Whether they are combined or segregated. That’s the choice of the consumer that whether the market is domestic or international but to change in the prices strategy is needed. Sometimes no discrimination is done or sometimes the prices of the goods varies at such a lower price that it does not pinch to the consumers as they are below their expectations. So increase in the prices does not affect them.
Monopolies of doing changes in the price of the goods are with the firm only. Price discrimination can be done or not that’s depends on it. Mostly prices of the goods get increased to earn more profits. There are different segments of the market and prices of the goods are raised by following the market strategy and certain market details. Profit maximization helps the firm in getting extra money on goods by the consumers and that is the whole profit of the firm and expense of the consumer.