Pareto Principle

Focus effort on the 20% of activities that drive 80% of results, systematically eliminating low-yield work to maximise output per hour invested.

Pareto Principle

Pareto Principle

definition

Introduction

The Pareto Principle often called the 80/20 rule says that a small share of inputs usually creates the bulk of the outputs. Economist Vilfredo Pareto noticed in 1896 that 20 per cent of Italians owned 80 per cent of the land; the same uneven pattern shows up almost everywhere:

  • 20 % of ad-groups drive 80 % of pipeline.
  • 20 % of clients generate 80 % of revenue.
  • 20 % of pages earn 80 % of organic traffic.

In B2B growth work, the rule is a thinking tool, not a fixed ratio. Your split might be 70/30 or 90/10, but the message is unchanged: a few high-leverage activities create most results, and the long tail creates noise.

Why it matters

The Pareto Principle matters because it systematically identifies where to focus scarce resources for maximum impact, whilst most organisations distribute effort evenly across all activities regardless of yield. Applying the principle means analysing your customer base to identify the 20% that deliver 80% of profit, then orienting sales and customer success toward serving and expanding those relationships whilst potentially exiting low-value segments. It means examining content performance to find the handful of pieces driving most conversions, then producing more in that vein rather than maintaining a scattered editorial calendar. For channel strategy, it often reveals that 1-2 channels generate most pipeline whilst 5-6 others consume budget and attention for marginal returns. The principle doesn't suggest ignoring the 80%, but rather recognising that different segments deserve different intensity of focus your top 20% of customers might receive dedicated account management, whilst the remaining 80% are served through automated systems and self-service. The framework is especially valuable during resource constraints: when you must cut 30% of marketing budget, Pareto analysis shows which 30% of spend generates only 5% of results, allowing surgical cuts rather than across-the-board reductions that harm high-performing programmes. The principle also guards against democratic decision-making fallacies: stakeholders advocating for "fair" distribution of resources across all products or segments may feel equitable, but such approaches starve your most productive assets whilst overinvesting in marginal ones. Organisations that rigorously apply Pareto thinking typically discover they can eliminate 50% of activities whilst maintaining 95% of results, then reinvest that liberated capacity into doubling down on highest-yield opportunities.

How to apply it

Gather clean data on outputs

Export leads by source, revenue by client, or trial sign-ups by blog post. Keep one metric per table so you can sort it without confusion. If data quality is shaky, fix tracking first; the rule only helps when inputs and outputs line up.

Sort, rank and draw the cut-off

Order the list from largest to smallest contribution. Mark where cumulative output crosses roughly 80 %. You will spot a short, steep section the “vital few” and a long, flat tail. In a SaaS funnel, five nurture emails might account for almost all conversions; the rest just add noise.

Double down on the vital few

  • Raise ad spend on the two LinkedIn campaigns that already convert.
  • Give VIP support to the top 10 % of accounts that drive referrals.
  • Expand the webinar series that wins the most meetings.

Improving a proven lever by 10 % often beats launching something untested from scratch.

Trim, automate, or park the trivial many

Archive under-performing ads, sunset unused features, or batch low-value admin once a week. Reclaiming those hours funds deeper work on the 20 % that counts.

Repeat the analysis every quarter

Markets shift; yesterday’s star article can fade. Schedule a recurring 80/20 review each quarter, ideally right before OKR planning, so next cycle’s goals reflect what is now driving results.

Conclusion

The Pareto Principle turns “work smarter” from a slogan into a method: identify the few inputs that power most outcomes, invest more there, prune the rest, and repeat. In growth marketing, the habit of quarterly 80/20 reviews keeps focus on the campaigns, clients and experiments that truly move pipeline and revenue.

Keep learning

Growth orchestration

The cockpit that sits above your four growth engines. Individual teams can excel at their own metrics, but without orchestration they're musicians playing different songs. This is where everything comes together and where improvements in one engine amplify gains in another.

Explore playbooks

Growth team tools

Growth team tools

The wrong tools create friction. The right ones multiply your output without adding complexity. These are the tools I recommend for growth teams that move fast.

Compound growth

Compound growth

Small improvements multiply. A 10% gain across twelve metrics doesn't add up to 120% - it compounds to 3x growth. This is the mathematical engine behind systematic growth.

Growth strategy

Growth strategy

Four decisions that shape everything else. When growth feels harder than it should, the problem is usually here. Get these right and execution becomes much easier.

Growth rhythms

Growth rhythms

Without rhythm, effort becomes scattered and progress invisible. A consistent operating cadence keeps your team aligned and your growth system continuously improving.

Related books

The 80/20 Principle

Richard Koch

Rating

Rating

Rating

Rating

Rating

The 80/20 Principle

Use Pareto thinking to pick channels, ideas and customers. Cut the long tail and double down on what works.

Related chapters

No items found.

Wiki

Statistical significance

Determine whether experiment results reflect real differences or random chance to avoid making expensive decisions based on noise instead of signal.

Growth lever

Focus resources on high-impact business mechanisms where small improvements generate disproportionate results across the entire customer journey.

Go-to-market strategy

Plan how you'll reach customers and generate revenue by choosing channels, pricing, and sales models that match your product and market reality.

Partner-led growth

Scale through partner relationships where other companies distribute your product to their customers in exchange for commissions or reciprocal value.

Churn rate

Measure the percentage of customers who stop paying to identify retention problems and calculate the true cost of growth in subscription businesses.

Last-touch attribution

Assign full conversion credit to the final touchpoint before purchase to identify which channels close deals but miss earlier influences that started journeys.

Marketing stack

Organise the tools that capture leads, nurture prospects, and measure performance to automate repetitive work and connect customer data across systems.

OMTM (One Metric That Matters)

Focus your entire organisation on the single metric that best predicts success at your current growth stage, avoiding distraction and misalignment.

Referral marketing

Turn satisfied customers into active promoters who systematically bring qualified prospects into your pipeline at near-zero acquisition cost.

Competitive advantage

Identify what you do better or differently that competitors can't easily copy to defend margins and win customers consistently over time.

Growth marketing

Apply disciplined experimentation across the entire customer lifecycle, optimising every stage through rapid testing and data-driven iteration.

Braindump

Clear mental clutter by transferring all thoughts, tasks, and ideas onto paper or screen, creating space for focused work.

Workflow automation

Connect triggers to actions across systems so repetitive tasks happen automatically and teams can focus on work that requires judgement instead of admin.

Activity tracking

Log emails, calls, and meetings automatically to understand what drives deals forward and coach reps based on actual behaviour rather than guesswork.

Contact management

Organise customer and prospect information to track relationships, communication history, and next steps without losing context or duplicating effort.

Minimum viable test

Design experiments that answer specific questions with minimum time and resources to maximise learning velocity without over-investing in unproven ideas.

UTMs

Track campaign performance precisely by appending parameters to URLs that identify traffic sources, mediums, and campaigns in your analytics.

First-touch attribution

Credit the channel that introduced prospects to your brand to measure awareness efforts and understand which top-of-funnel activities start customer journeys.

API

Enable tools to exchange data programmatically so you can build custom integrations and automate processes that vendor-built integrations don't support.

Constraint

Identify and leverage limitations as forcing functions that drive creative problem-solving and strategic focus.