A consumer is an individual or group that purchases goods and services for personal use. They play a crucial role in the economy by driving demand for products, which influences production and pricing. Consumers can be found in various markets, from grocery stores to online platforms, and their choices impact businesses and industries. Consumers are often categorized based on their buying behavior, preferences, and demographics. Understanding consumer behavior helps companies like Apple and Amazon tailor their marketing strategies and product offerings. This relationship between consumers and businesses is essential for economic growth and innovation.