In most of the world this week, our cover story explores the trajectory of global demographics. We argue that the collapse in fertility around the world will have profound economic consequences.

Leader: Global fertility has collapsed, with profound economic consequences
Briefing: It’s not just a fiscal fiasco: greying economies also innovate less

Meanwhile, in Britain our cover story looks at the collapse of the Scottish National Party, arguing that it holds lessons for populists everywhere.

Leader: Scotland has been on a ten-year holiday from reality
Britain: After a decade of SNP dominance, Scotland’s politics is suddenly in flux