THE ECONOMIST MAGAZINE: The latest issue features ‘The global currency beef’ – Lessons from 40 years of the Big Mac Index

What the Big Mac index reveals about a global currency beef

It highlights economic problems—and helps explain how to solve them

It is past time to upgrade to post-quantum encryption

When the quantum breakthrough comes, data being harvested today will be exposed

China is testing America’s defence lines in Asia

The allies must work to strengthen themselves, but also to strengthen America’s commitment

Europe’s fires are just the start

They are not a new normal. But worse can nonetheless be expected