The reference · 23 indicators
Economic Indicators, Measures, Yardsticks
Every statistic that gets quoted at you, in three honest parts: what it actually measures, what it is used for — and the catch: where it fails to reflect a country's real situation. Because reading the numbers critically is the whole discipline.
Macro Indicators
How big an economy is, how fast it moves, and who it leaves behind.
Gross Domestic Product (GDP)
The total market value of all final goods and services produced within a country in a given period — the standard measure of the size of an economy.
Used for · Comparing economies, tracking growth, anchoring policy targets.
The catch · Says nothing about how output is distributed, counts activity rather than welfare, and misses informal and unpaid work — a serious blind spot in economies where most employment is informal.
World median · 1990–2025
GDP per Capita
GDP divided by population — output per person, often used as a rough proxy for average income and living standards.
Used for · Comparing living standards between countries of very different sizes.
The catch · An average, not a typical experience: a country where a small elite earns enormously can post a healthy per-capita figure while the median citizen sees little of it.
World median · 1990–2025
Real GDP Growth Rate
The percentage change in GDP from one period to the next, adjusted for inflation so that only genuine increases in output count.
Used for · The headline number for whether an economy is accelerating or slowing; the basis of growth targets and forecasts.
The catch · Growth says nothing about its own composition — GDP can grow through sectors that create very few jobs, which is exactly how 'jobless growth' happens.
World median · 1990–2025
Gross Value Added (GVA)
The value of output minus the value of inputs used to produce it, measured sector by sector — GDP seen from the production side.
Used for · Comparing the real contribution of individual sectors (agriculture, manufacturing, services) to the economy.
The catch · Sector aggregates hide what matters for workers: a sector can add enormous value while employing very few people, or employ half the workforce while adding little.
Inflation (Consumer Price Index) (CPI)
The rate at which the general price level of a basket of consumer goods and services rises, eroding purchasing power.
Used for · Setting interest rates, indexing wages and pensions, measuring the cost of living.
The catch · One basket cannot represent every household: the poor spend a larger share on food and fuel, so headline CPI often understates the inflation they actually face.
World median · 1990–2025
Unemployment Rate
The share of the labour force that is actively seeking work but cannot find it.
Used for · The most-quoted measure of labour-market health.
The catch · Counts only active seekers — discouraged workers who stop looking vanish from the statistic, and someone in precarious informal work counts as 'employed'. Low unemployment can coexist with widespread bad employment.
World median · 1991–2025
Monetary
The price of money, the quantity of it, and what it buys abroad.
Policy Interest Rate
The rate at which a central bank lends to commercial banks — the benchmark from which most other borrowing costs in the economy are set.
Used for · The central bank's main lever: raised to cool inflation, cut to stimulate borrowing and growth.
The catch · A blunt instrument with long lags — rate changes take months to work through the economy, and they cannot fix problems that are not about the price of money, such as supply shocks.
Money Supply (M1 / M2 / M3)
The total money circulating in an economy, counted in widening rings: cash and current accounts (M1), plus savings deposits (M2), plus larger and longer-term deposits (M3).
Used for · Tracking how much liquidity a central bank has created, and how fast credit is expanding.
The catch · The link between money supply and inflation is far looser than textbooks suggest — money can pile up in bank reserves or asset markets without ever reaching consumer prices.
Exchange Rate
The price of one currency in terms of another — how many rupees a dollar buys.
Used for · Determines the real cost of imports and the competitiveness of exports; a running vote of confidence in an economy.
The catch · Driven by capital flows and sentiment as much as fundamentals — a currency can weaken for reasons that have little to do with the domestic economy's health.
Wholesale Price Index (WPI)
Price changes measured at the wholesale stage, before goods reach consumers — tracking what producers and bulk buyers pay.
Used for · An early-warning signal: wholesale price spikes usually reach consumer prices within months.
The catch · Excludes services entirely — in service-dominated economies it describes a shrinking share of what people actually buy.
Purchasing Power Parity (PPP)
An exchange-rate adjustment that compares economies by what money actually buys locally, rather than at market currency rates.
Used for · Fairer comparisons of living standards — $100 buys far more in Mumbai than in Manhattan.
The catch · Depends on comparing 'equivalent' baskets of goods across very different societies, which is as much art as science; PPP figures are revised heavily and lag badly.
Fiscal
What the state earns, spends, and owes.
Government Debt (Debt-to-GDP)
Government debt expressed as a share of annual GDP — the standard way of asking whether a debt burden is large relative to the economy carrying it.
Used for · Judging fiscal sustainability and comparing borrowing across countries of different sizes.
The catch · No universal danger line exists — sustainability depends on interest rates, growth, and who holds the debt. Japan carries ratios that would sink other economies.
World median · 1990–2023
Fiscal Deficit
The gap between what a government spends and what it earns in a year, financed by borrowing.
Used for · Tracks how much new debt the state is taking on; a central target of budget policy.
The catch · Says nothing about what the borrowing buys — a deficit funding infrastructure and one funding subsidies look identical in the headline number.
Tax Revenue
What the state actually collects in taxes, usually expressed as a share of GDP — the measure of its capacity to fund itself.
Used for · Assessing state capacity; low ratios signal narrow tax bases, weak collection, or large informal economies.
The catch · The ratio says nothing about fairness: two countries collecting the same share can raise it from very different people, and heavy indirect taxes fall hardest on the poor.
Global Trade
An economy's dealings with everyone else.
Trade Balance
Exports minus imports of goods and services. Positive = surplus; negative = deficit.
Used for · Tracks whether a country pays its way in world markets, and which industries drive that.
The catch · A deficit is not automatically bad (importing machinery to industrialise is an investment), and a surplus not automatically good (it can reflect weak domestic demand).
Current Account Balance
The broadest measure of a country's transactions with the world: trade, plus income flows and remittances.
Used for · The headline test of external stability — persistent deficits must be financed by borrowing or investment inflows.
The catch · Sustainability depends entirely on how a deficit is financed; the single figure cannot distinguish stable long-term investment from footloose hot money.
World median · 1990–2025
Foreign Direct Investment (FDI)
Long-term investment by foreign entities into productive assets — factories, companies, infrastructure — as opposed to portfolio flows into shares and bonds.
Used for · A confidence signal and a growth input: FDI brings capital, technology and jobs that are hard to reverse quickly.
The catch · Headline FDI can be inflated by round-tripping and acquisitions that build nothing new; net figures can swing wildly on a few large deals.
World median · 1990–2025
Foreign-Exchange Reserves
The stock of foreign currencies, gold and other external assets held by a central bank.
Used for · The war chest for defending the currency and paying for imports in a crisis — usually quoted as 'months of import cover'.
The catch · The headline stock overstates usable firepower: gold is illiquid in a hurry, and forward positions can quietly commit reserves that still appear in the total.
World median · 1990–2025
Human Development
Whether the growth reaches the people it is meant to serve.
Human Development Index (HDI)
A composite of life expectancy, education and income per head — an attempt to measure development as more than output.
Used for · Comparing living standards across countries beyond GDP alone.
The catch · Averages hide inequality within countries, and the index moves slowly — it can look stable while conditions for particular groups deteriorate.
Gini Coefficient
A measure of inequality from 0 (everyone earns the same) to 100 (one person earns everything), computed over income or wealth.
Used for · The standard single-number summary of how unequally an economy's gains are shared.
The catch · One number cannot say where the inequality sits — two countries with identical Ginis can have completely different distributions, and wealth Ginis depend heavily on how well the richest are surveyed, which is poorly.
World median · 1992–2023
Life Expectancy at Birth
The average number of years a newborn would live if current mortality patterns held for its whole life.
Used for · The single most honest summary of whether an economy's gains reach people's actual lives.
The catch · A national average across enormous internal gaps — and it reflects decades of past conditions, so it responds to today's policy only slowly.
World median · 1990–2024
Labour Force Participation Rate (LFPR)
The share of the working-age population that is either working or actively looking for work.
Used for · Reveals what the unemployment rate hides: how many people have entered — or left — the labour market altogether.
The catch · Falls can be misread as crisis when they reflect more young people staying in education; comparisons also break down where women's work is under-recorded.
Informal Employment Share
The proportion of workers employed without formal contracts, social security, or statutory protections.
Used for · The single best indicator of job quality in developing economies.
The catch · Hard to measure by definition — informal work is what the official record misses, so estimates rely on surveys with wide margins of error.
Indicators are added and revised as editions demand them. World-median lines are computed from the World Bank development record. Spot an error? The editor wants to know.