Inflation
The rate at which prices rise and money loses purchasing power over time, eroding the real value of cash and fixed returns.
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CPI (Consumer Price Index)
The Consumer Price Index is how a country actually measures inflation. Learn what the 'basket of goods' is, how a national statistics agency builds the number, the difference between headline and core inflation, why central banks target 2%, and why a CPI release can move markets in seconds.
GDP (Gross Domestic Product)
Gross Domestic Product is the single number that sums up the size of an economy. Learn the three ways it's measured, the crucial difference between real and nominal GDP, what growth and contraction mean, how it defines a recession, why investors track it — and the important things it leaves out.
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