A national retailer is a business that sells products or services across multiple locations within a country. These retailers often have a chain of stores, allowing them to reach a wide customer base. Examples of national retailers include Walmart, Target, and Best Buy. They typically offer a variety of goods, from groceries to electronics. National retailers benefit from economies of scale, which means they can often sell products at lower prices due to their large volume of sales. They also invest in marketing and advertising to build brand recognition and attract customers nationwide.