skills

Pisa stands for Programme for International Student Assessment. But judging from the reaction to the OECD rankings of educational attainment, it may as well mean Parental Index of Social Anxiety.

Tom Perkins, the Silicon Valley venture capitalist, made a terrible mistake by comparing criticism of rich Americans – the “1 per cent” – to the Kristallnacht attack on Jews in Germany in 1938. Mr Perkins, co-founder of Kleiner Perkins Caufield Byers, has since apologised.