- A company's product mix includes all products offered for sale, organized into product lines which are groups of related products.
- Product mix strategies include trading up/down by adding higher/lower priced products, line stretching to enter new price points, line filling to add more variations, and line pruning to remove underperforming products.
- Companies extend their product lines for reasons such as reducing costs, increasing shelf space and market share, and making sales forecasts easier. However, overextending lines can weaken brands and lower loyalty through super saturation.