What is the meaning of bait and hook in economics?

In economics, "bait and hook" refers to a pricing strategy where a company offers a product at a low initial cost (the bait) to attract customers, but then charges high prices for complementary goods or services (the hook). This approach is often used in industries like printers and razors, where the main product is inexpensive, but the ongoing costs for consumables, such as ink or blades, can be substantial. The strategy aims to create customer dependency on the complementary products, ensuring continuous revenue for the company.