Venture Economics Framework: 42 Key Terms

By Devon Coombs, CPA, MBA · Teaching Professor of Finance, Santa Clara University · Reviewed August 2026

Venture economics describes whether a startup's underlying business can eventually produce more cash than it consumes, a question typically answered with metrics such as burn rate, burn multiple, CAC payback period, and contribution margin. Strategy vocabulary, including beachhead strategy and adoption friction, complements those metrics by describing how a company earns its unit economics in the first place. Together these terms form the framework taught in Week 2 of the free Entrepreneurial Finance course, and they often dominate early conversations between founders and investors.

These terms are taught in Week 2: The Venture Economics Framework of the free Entrepreneurial Finance course; the full course glossary collects every chapter in one place.

Adoption Friction: The switching costs, procurement, training, integration, compliance, and internal politics that can block a superior product from being bought.
Annual Contract Value (ACV): The annualized revenue from a single customer contract. ACV constrains which sales motion a business can afford.
Beachhead Strategy: Winning a narrow, high-pain segment decisively, then using it as a wedge into adjacent segments.
Blue Ocean Strategy: Creating uncontested market space through value innovation, pursuing differentiation and low cost together (Kim and Mauborgne, 2005).
Burn Multiple: Net burn divided by net new ARR (Sacks, 2020). Below 1x is exceptional; above 3x signals inefficient growth.; Gross burn vs Net burn
Burn Rate: Net monthly cash consumed. Gross burn is total spend; net burn is spend minus revenue.
CAC Payback Period: Months to recover acquisition cost through per-customer contribution. Under 12 months is strong; over 18 months is a cash-flow risk.; Customer Lifetime Value (LTV) vs Customer Acquisition Cost (CAC)
Cash Conversion Cycle (startup): The time between spending to acquire a customer and recovering that cost through cumulative contribution margin.
Churn: The rate at which customers or revenue are lost. A few points of monthly churn can halve customer lifetime.
Cohort Analysis: Tracking the economics of customers grouped by acquisition period to reveal trends that blended averages hide.
Competition-Based Pricing: Setting price relative to competitors. Prone to price wars and does not reward differentiation.
Contribution Margin (CM1): Revenue per unit minus all direct delivery costs (COGS, payment fees, onboarding, support). It tests whether the product itself is viable.
Contribution Margin (CM2): CM1 minus variable sales and marketing cost per unit. It tests whether the go-to-market motion is viable.
Cost-Plus Pricing: Setting price as cost plus a target markup. Simple, but blind to willingness to pay.
Crossing the Chasm: Moore's observation that the gap between early adopters and the pragmatist early majority kills startups that cannot cross it.
Customer Acquisition Cost (CAC): Fully loaded sales and marketing spend divided by new customers acquired in the period.; Customer Lifetime Value (LTV) vs Customer Acquisition Cost (CAC)
Customer Lifetime Value (LTV): Average revenue per customer times gross margin times average lifespan (or divided by churn). The economic value of a customer.; Customer Lifetime Value (LTV) vs Customer Acquisition Cost (CAC)
Default Alive / Default Dead: Graham's test of whether current growth and burn reach profitability before cash runs out (alive) or not (dead).
Evidence Ladder: A seven-level scale of validation strength, from gut-feel assumption (Level 1) to profitable unit economics at modest scale (Level 7). Level 4, a paid pilot, is the first credible signal.
Fatal Pinch: Graham's trap of short runway, slow growth, and locked-in costs, where neither cutting nor spending fixes the problem in time.
Gross Bookings / GMV: The total transaction value flowing through a marketplace before the platform's take rate is applied.
Gross Retention: Revenue kept from existing customers, ignoring expansion. By definition it does not exceed 100%, and it exposes churn that NRR can mask.
Jobs to Be Done: Christensen's lens that customers hire a product to do a job. The job, not the product, is the unit of analysis.
LTV:CAC Ratio: Lifetime value divided by acquisition cost. About 3:1 is a common healthy benchmark; below 1:1 loses money; above 5:1 may signal underinvestment in growth.; Customer Lifetime Value (LTV) vs Customer Acquisition Cost (CAC)
Magic Number: A SaaS sales-efficiency rule of thumb: the quarterly revenue increase times 4 (annualized net new ARR) divided by prior-quarter sales and marketing spend. Above about 0.75 is commonly read as efficient; below about 0.5 as inefficient.
Minimum Viable Product (MVP): The smallest build that tests whether customers will pay for a solution.
Net Revenue Retention (NRR): Revenue kept and expanded from existing customers over a period. Above 100% means the base grows without new customers; top SaaS reaches 120 to 140%.
Network Effects: Value that rises for each user as more users join. Direct effects are same-side; indirect effects are cross-side. Scale alone is not a network effect.
Operating Leverage: The degree to which a cost structure is fixed rather than variable. High operating leverage lets revenue scale faster than cost once fixed costs are covered.
Porter's Five Forces: A test of industry attractiveness through rivalry, new entrants, substitutes, and supplier and buyer power (Porter, 1979).
Price Metric: The unit a price is attached to (per seat, per transaction, per usage, percentage of value). The ideal metric scales with the value the customer receives.
Problem-Solution Fit: Confirmation that a real problem exists and the proposed solution is viable. It precedes Product-Market Fit.
Product-Market Fit: The state in which a specific market actively pulls a specific product, shown by organic referrals, low churn, deepening usage, and expansion revenue.
Revenue Model: The primary way a business captures value: Product, Services, Intellectual Property/Licensing, Marketplace/Commission, Advertising, or Financial Intermediation/Risk Transfer (many businesses combine several as hybrids).
Rule of 40: A SaaS rule of thumb: revenue growth rate plus profit margin, in percentage points, should reach about 40. It lets fast growth offset losses; 30% growth with a 5% margin scores 35, below the bar.
Runway: Cash on hand divided by monthly net burn. Below 6 months is a crisis; 12 to 18 months is a healthy fundraising window.; Gross burn vs Net burn
Take Rate: A marketplace's commission expressed as a percentage of gross bookings. Revenue equals GMV times take rate.
TAM / SAM / SOM: Total Addressable Market (the full ceiling), Serviceable Addressable Market (what the model can serve), and Serviceable Obtainable Market (the realistic near-term share).
Unit Economics: The revenue and cost of a single unit or customer, used to test whether each transaction creates economic value.
Validated Learning: Ries's principle of testing the problem-solution hypothesis with a minimum viable product before committing significant capital.
Value-Based Pricing: Setting price from the economic value delivered to the customer rather than from cost or competitor prices.
VRIO: Barney's test of whether a resource yields sustained advantage: Valuable, Rare, costly to Imitate, and the firm Organized to capture it (Barney, 1995, evolving from the 1991 VRIN test).

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