Is Beijing’s signature worth the paper it’s written on?Press play to listen to this articleVoiced bySYDNEY — The EU and China long-awaited investment deal — but what is Beijing’s signature worth when it comes to trade pacts, and what does it cost?Australia, which has descended into a nasty trade fight with China, its biggest trading partner, has some uncomfortable answers for the Europeans on these questions.The bottom line: top-level politics trumps trade every time. Canberra's experience shows the pitfalls of trying to balance economic policy with national security, regional politics and...…Is Beijing’s signature worth the paper it’s written on?Press play to listen to this articleVoiced bySYDNEY — The EU and China long-awaited investment deal — but what is Beijing’s signature worth when it comes to trade pacts, and what does it cost?Australia, which has descended into a nasty trade fight with China, its biggest trading partner, has some uncomfortable answers for the Europeans on these questions.The bottom line: top-level politics trumps trade every time. Canberra's experience shows the pitfalls of trying to balance economic policy with national security, regional politics and...WW…