Why the price of labour responds less to demand than that of other commodities is a bit of a puzzle.

ECONOMIST: The recession and pay

It's a bit of a puzzle, because independent surveys of public sector earnings don't show average public sector pay growing nearly as fast during this period.

BBC: Public sector jobs are well down, so why is the pay bill up?

This is bit of a puzzle: the most likely explanation is that Swedish women feel particularly confident in reporting sexual assaults, whereas women elsewhere keep quiet.

ECONOMIST: Whether sex is rape depends partly on where it happens