The primary goal of portfolio analysis is to determine the appropriate strategy for each product. A Build strategy involves increasing market share through heavy investment, typically applied to Question Marks with high potential to become Stars.
A Hold strategy aims to maintain the current market share of a product. This is often applied to Stars to ensure they remain leaders until the market growth slows down and they transition into Cash Cows.
A Harvest strategy focuses on maximizing short-term cash flow with minimal investment. This is the standard approach for Cash Cows, where the goal is to 'milk' the product for profits to support other business units.
A Divest strategy involves selling off or liquidating a product. This is usually reserved for Dogs or Question Marks that are failing to gain traction, allowing the firm to reallocate resources to more promising areas.
The logic of the BCG Matrix is rooted in the Experience Curve, which suggests that as a firm's cumulative production increases, its costs decrease. Therefore, the product with the highest market share should theoretically be the most profitable due to lower unit costs.
Market growth is used as a proxy for Market Attractiveness. High-growth markets offer opportunities for expansion but are also highly competitive and capital-intensive, requiring firms to spend more on marketing and R&D.
A balanced portfolio should ideally contain enough Cash Cows to provide the necessary funding, enough Stars to ensure future stability, and a few Question Marks that represent the next generation of growth.
| Feature | Stars | Cash Cows | Question Marks | Dogs |
|---|---|---|---|---|
| Market Growth | High | Low | High | Low |
| Market Share | High | High | Low | Low |
| Cash Flow | Neutral/Negative | Highly Positive | Highly Negative | Neutral/Negative |
| Strategy | Hold / Invest | Harvest / Maintain | Build / Divest | Divest / Niche |
It is critical to distinguish between Market Share (the percentage of total market sales) and Relative Market Share (share relative to the leader). A firm might have 20% of a market, but if the leader has 60%, the firm's relative share is low, placing it in a weaker competitive position.
Identify the Axes First: When presented with a case study, always verify the market growth rate and the firm's share relative to the leader before categorizing the product. Do not assume a high sales volume automatically makes a product a 'Star'.
Look for Cash Flow Trends: Exams often ask about the relationship between products. Remember that Cash Cows fund the development of Question Marks. If a firm has no Cash Cows, it will struggle to support its Stars and Question Marks.
Avoid the 'Dog' Trap: Do not automatically assume every 'Dog' must be deleted immediately. If a Dog provides a necessary component for a Star or helps maintain a brand's presence in a specific segment, it may be kept for strategic reasons.
Check for Market Maturity: If a market is described as 'saturated' or 'mature', the products within it are likely Cash Cows or Dogs, regardless of how high the sales figures are.