Gordon Growth Model

The annualised rate of return that smooths out growth over multiple years, calculated as (ending value / beginning value)^(1/years) minus one. CAGR is used to compare growth trajectories of companies or metrics across different time periods.

The percentage change in a metric from one year to the next, used to assess trends while neutralising seasonal effects. YoY growth rates in revenue, productivity, and intangible asset investment are fundamental to performance evaluation, valuation modelling, and growth accounting analysis.

The rate at which a firm increases its output relative to its inputs over time. Productivity growth is a key indicator of operational efficiency and long-term competitiveness, closely linked to investment in intangible assets such as technology, training, and process improvement.

A business model in which a basic version of a product or service is offered free of charge while premium features, enhanced functionality, or expanded capacity are available for a subscription fee. The freemium model is prevalent in SaaS, enabling rapid user acquisition and product-led growth, with conversion rates from free to paid users typically ranging from 2% to 5%.

A business strategy that minimises investment in physical assets and instead relies heavily on intangible assets such as software, brand, data, and intellectual property to generate revenue. Asset-light companies typically exhibit higher scalability and return on capital but can be harder to value using traditional balance-sheet methods.

A type of neural network trained on vast corpora of text data, capable of generating human-like text, answering questions, summarising documents, and performing reasoning tasks. Large language models such as GPT and Claude represent significant R&D investment and are reshaping knowledge work, customer service, and content production across industries.

A go-to-market strategy where the product itself serves as the primary driver of customer acquisition, conversion, and expansion, rather than traditional sales-led approaches. PLG companies offer free trials, freemium tiers, or self-service onboarding that allows users to experience value before engaging with sales teams.

The number of months a company can continue operating at its current burn rate before running out of cash. Runway is calculated as current cash balance divided by monthly burn rate and is the most critical survival metric for pre-profit businesses.

AI Integration Costs: The Hidden Expenses of AI Adoption

AI licensing fees represent only 20-30% of total AI adoption costs. The remaining 70-80% — data preparation, integration engineering, change management, and ongoing maintenance — are the hidden expenses that derail AI budgets and timelines.

How is the Rule of 40 calculated and when does it apply?

The Rule of 40 states that a healthy SaaS company's revenue growth rate plus profit margin should exceed 40% — it applies primarily to SaaS companies at scale and is used by investors to assess growth-profitability balance.