📊 Interactive Tool v0.8.0

NPI Index Tracker

Measure how efficiently your economy turns inputs into value – with real‑world data from 47+ countries.

Select a country and year range to see the National Productivity Index (NPI) – a composite measure of economic efficiency.
⚡ Powered by real‑world data from World Bank, ILO, IEA, UNEP, and OECD.

📖 What is the NPI? ▼

The National Productivity Index (NPI) measures how efficiently an economy converts its key inputs into economic output. It is defined as:

NPI = GDP ÷ (Labour0.40 × Energy0.25 × Materials0.20 × Capital0.15)

Higher NPI means the economy produces more value from the same inputs – a sign of genuine progress, not just growth.

📘 Using book's fixed weights (40/25/20/15)
⚖️ Weight Adjusters
📈 NPI: —
📊 Growth: —
Select a country and click "Calculate NPI" to get started.
📊 Component Breakdown Average annual contribution
🧠 Diagnosis
Select a country and click "Calculate NPI" to see your analysis.
We'll show you which factor drives your productivity.
Ready
Click "Generate AI Analysis" for insights.
⚠️ AI can make mistakes. Verify with your own research.
📌 Data sourced from World Bank, ILO, IEA, UNEP, and OECD. Last updated: 2024. ⚠️ Capital stock data is estimated. This is an empirical proxy for the NPI framework.
❓ FAQ

Frequently Asked Questions

Everything you need to know about the Productivity Bond Model, the NPI Index Tracker, and the interactive tools.

📊 What is the National Productivity Index (NPI)? ▼

The National Productivity Index (NPI) is a composite measure of economic efficiency. It calculates how effectively an economy converts its key inputs – Labour, Energy, Materials, and Capital – into economic output (GDP).

NPI = GDP ÷ (Labour0.40 × Energy0.25 × Materials0.20 × Capital0.15)

A higher NPI means the economy produces more value from the same inputs – a sign of genuine progress, not just growth.

🌍 How does the NPI Index Tracker work? ▼

The NPI Index Tracker is an interactive tool that calculates the NPI using real‑world data from 47 countries, spanning 1990 to 2023.

You can:

  • Select any country – from the USA and China to Nigeria and Vietnam.
  • Choose your year range – from 1990 to 2023.
  • Switch between three weight modes – Book NPI (fixed weights), Country Preset (auto‑applied based on economy type), or Custom (fully adjustable).
  • Visualise the NPI trend – with an interactive line chart.
  • See the component breakdown – which factor drives productivity.
  • Get a prescription – auto‑generated diagnosis with actionable recommendations.
  • Export the data – download a CSV of the current chart.
  • Share your setup – copy a shareable link that encodes your country, years, and weights.
  • Ask the AI – get a detailed analysis with country‑specific context.

Launch the NPI Index Tracker →

⚖️ What are the three weight modes? ▼
📘 Book NPI
Fixed weights: 40% Labour · 25% Energy · 20% Materials · 15% Capital. This is the canonical version defined in The Infinite Debt Problem.
🌍 Country Preset
Weights auto‑adjust based on the country's economic category (Tech, Resource, Manufacturing, Developing, Service, Mixed).
⚙️ Custom
Fully adjustable sliders that automatically rebalance to sum to 100% – perfect for exploring alternative assumptions.
📂 Where does the data come from? ▼

All data is sourced from publicly available international databases:

GDP – World Bank
Hours Worked – ILO / OECD
Energy Consumption – IEA
Materials Consumption – UNEP
Capital Stock – OECD / Penn World Table

⚠️ Capital stock data is estimated. This is an empirical proxy for the NPI framework – not an official government statistic.

🤖 What does the AI analysis do? ▼

The AI Analysis feature provides:

  • A structured summary – NPI trend, best and worst performing components, and country‑specific economic context.
  • Actionable advice – tailored recommendations based on the country's economic category (Tech, Resource, Manufacturing, Developing, Service, Mixed).
  • Component growth breakdown – showing the annual growth rate of GDP, Labour, Energy, Materials, and Capital.
  • Clear disclaimer – AI can make mistakes. Always verify with your own research.

The AI is powered by a Cloudflare Worker with rule‑based insights, with optional integration for LLM‑powered analysis.

📥 Can I export or share my results? ▼

Yes! The NPI Index Tracker includes two powerful sharing features:

  • 📥 Export CSV – Download the current chart data (Year, GDP, Hours, Energy, Materials, Capital, NPI) as a CSV file for further analysis in Excel or Google Sheets.
  • 📋 Copy Link – Generate a shareable URL that encodes your country, year range, weight mode, and custom weights. Share it with colleagues, students, or on social media.
🧪 What are the other tools in the PBM Productivity Lab? ▼
🌿 Wellbeing Index
Measure your work‑life balance, mental health, sleep, resilience, and productivity. Generates a 0–100 wellbeing score with radar chart and 10‑year projection.
💳 Debt Reality
Diagnose your financial situation. See your payoff timeline, total interest, debt‑to‑income ratio, and the impact of extra payments.
📈 Compound Curve
Visualise how debt compounds over time and how small changes bend the curve. See the power of compounding – for better or worse.

Visit the PBM Productivity Lab →

🏛️ What is the Productivity Bond Model? ▼

The Productivity Bond Model is a framework for sovereign debt that links returns to measurable productivity gains rather than fixed compounding. It addresses the fundamental contradiction between unlimited financial promises and a finite planet.

Key features:

  • Productivity‑linked returns – investors are rewarded when the economy becomes more efficient.
  • Productivity Dividend – a share of productivity gains flows to citizens.
  • Countercyclical design – payments rise and fall with economic performance.
  • Finite‑planet compatible – rewards doing more with less, not endless expansion.

Monte Carlo simulations (10,000 paths, 10‑year horizon) show a ~3.1% cost reduction vs conventional bonds.

Explore the simulator → · Read the book →

🔧 Is the NPI Index Tracker free and open source? ▼

Yes! The NPI Index Tracker and all PBM tools are completely free, open source, and run entirely in your browser.

  • No registration – no sign‑up required.
  • No data collection – your data stays local.
  • No fine print – open source, MIT/CC license.
  • Source code available – GitHub Repository
📈 What countries are included? ▼

The NPI Index Tracker currently includes 47 countries from 1990 to 2023:

ARG AUS AUT BEL BRA CAN CHE CHL CHN COL CZE DEU DNK EGY ESP FIN FRA GBR GRC HUN IDN IND IRL ISR ITA JPN KEN KOR MEX MYS NGA NLD NOR NZL PER PHL POL PRT RUS SAU SGP SWE THA TUR USA VNM ZAF

More countries will be added in future updates.

Explore the Tools

Interactive calculators to help you understand your financial and personal wellbeing.

🌿

Wellbeing Index

Measure your work-life balance, mental health, and productivity to find your harmony zone.

Try It →
💳

Debt Reality

Diagnose your financial situation, see the true cost of debt, and get a personalized plan.

Try It →
📈

Compound Curve

See how your debt compounds over time — and how small changes bend the curve.

Try It →
📖 Learn

Master the Productivity Bond Model

The NPI Index Tracker is powered by the Productivity Bond Model (PBM) – a revolutionary framework for replacing perpetual-growth-dependent debt with productivity-linked prosperity.