bcg-matrix

Analyzes a portfolio of business units or product lines with the BCG Growth-Share Matrix. Each unit is placed by market growth rate and relative market share into one of four quadrants (Stars, Cash Cows, Question Marks, Dogs), and the portfolio is assessed for cash-flow balance and reallocation.

The two axes, the four quadrants and their strategies, the underlying cash-flow logic, and the critiques live in references/bcg.md. Load that file before analyzing and use its thresholds and definitions.

When to use

The user has a set of business units or products and wants to decide where to invest, hold, harvest, or divest across them, or wants to see whether the portfolio is balanced. It needs a portfolio of two or more units; for a single market's competitive structure, prefer a Five Forces analysis.

Language

Conduct the session and write the report in the language the user is writing in. The reference file is English; keep the framework keyed to it regardless of output language.

Inputs

• PORTFOLIO (required): the business units or product lines to analyze.
• DATA (optional but valuable): for each unit, its market growth rate, its market share and the largest competitor's share (for relative share), and its revenue. Where data is missing, the analyst estimates it and lowers confidence rather than inventing precision.
• CONTEXT (optional): the company, the time horizon, and what decision the analysis informs.