When the price of a good decreases, which of the following effects contributes to the change in consumer surplus due to increased utility maximization, particularly focusing on the substitution effect?

When the price of a good decreases, consumers usually feel happier because they can buy more of that good without spending more money. This change is known as the substitution effect, which happens when people choose to buy more of the cheaper good instead of a more expensive one. For example, if the price of apples drops, people might buy more apples instead of oranges, which they usually buy when apples are more expensive. As a result, consumers get more satisfaction or utility from their purchases because they can enjoy more of the good they prefer at a lower cost. This increase in consumer surplus means that consumers are getting more value for their money, making them feel better overall about their spending.