Rational behaviours in households, workers, firms include aiming to maximise utility, profit, or social welfare.
Consumers gain benefits from buying goods and services such as brand loyalty, lack of information, laziness, safety, health, taste, pleasure/happiness, durability, better living standards, and saving time and money.
Workers maximise utility by gaining experience or new skills, job security and stability, pensions, and financial security for the future, which increases their feeling of safety.
This increased sense of safety leads to a reduced need for loans and early retirement.
Firms maximise profits by increasing levels of advertising, which increases engagement awareness amongst consumers and can attract new customers to purchase goods.
This is particularly important for firms with no high street presence, such as online or competitive areas.
Firms can attract new customers by offering free samples, big sales, free shipping and returns.
The government maximises social welfare by allowing the public to vote for it, so it should make decisions that make the public happy.