Don’t lie to me, Argentina

IMAGINE a world without statistics. Governments would fumble in the dark, investors would waste money and electorates would struggle to hold their political leaders to account. This is why The Economist publishes more than 1,000 figures each week, on matters such as output, prices and jobs, from a host of countries. We cannot be sure that all these figures are trustworthy. Statistical offices vary in their technical sophistication and ability to resist political pressure. China's numbers, for example, can be dodgy; Greece underreported its deficit, with disastrous consequences. But on the whole government statisticians arrive at their figures in good faith.

What's in a number