Product mix, its dimensions, and how product mix decisions affect performance and competitive position

Meaning of product mix

The product mix (or product portfolio) is everything a company sells, taken together: all its product lines and the items in them. Deciding it is one of the product decisions in the marketing mix. A product line is a family of closely related products; a product item is one particular version within a line.

Dimensions of the product mix

1. Width: the number of different product lines. A large consumer-goods company with lines in soaps, detergents, shampoos, skin care, tea, coffee and packaged foods has a wide mix.
2. Length: the total number of items across all lines. A car maker offering many models across hatchbacks, sedans, utility vehicles and vans has a long mix.
3. Depth: the number of versions offered of each product: sizes, flavours, variants. A biscuit brand offered in several flavours and pack sizes from small single-serve packs to family packs has a deep line.
4. Consistency: how closely related the lines are in end use, production and distribution. A paint company whose lines are decorative paints, industrial coatings and waterproofing has a highly consistent mix; a conglomerate ranging from steel to software has a low one.

How product mix decisions influence performance and competitive position

1. Widening the mix (adding lines) spreads risk, uses existing brand strength and distribution, and opens new sources of revenue. A soap and detergent maker, for example, might add packaged foods or wellness products to reach faster-growing categories. The risk is loss of focus.
2. Lengthening lines (line stretching and filling) lets a firm cover more price points and segments and block competitors from gaps. Two-wheeler makers offer entry-level, mid-range and premium motorcycles so that a customer can trade up within the brand. Too many items, however, raise costs and confuse buyers.
3. Deepening items (more variants and pack sizes) serves varied needs and usage occasions. Small, low-priced packs, such as single-use sachets, bring a product within reach of buyers who cannot afford the large pack, so the market can grow.
4. Consistency builds a strong reputation and lowers costs through shared production and channels. A firm known as a specialist (for example in paints or tyres) earns credibility; a less consistent mix can reach more markets but may dilute the brand.
5. Pruning weak items and lines frees resources for winners and improves profitability; many firms periodically drop slow-moving variants.
6. Competitive position. A well-planned mix creates barriers to entry, secures more shelf space, gives bargaining power with retailers and lets the firm counter rivals in each segment, as smartphone makers do by offering budget, mid-range and flagship models.

Conclusion

Product mix decisions on width, length, depth and consistency are strategic: they decide which customers a firm can serve, how efficiently it can serve them, and how strongly it can defend its market position.