Clement Letters 18/1/16

Double-decker tunnel a tall order

Your article headlined "Chinese railways push for double-deck Sydney Harbour tunnel to fit high-speed rail" (AFR, January 14) raised some important questions and equally important problems. On the face of it, the point about future-proofing transport infrastructure is quite right.

Even Keynes found currency trading hard.

Even the master found forex hard

It's a year since the Swiss National Bank toppled the currency markets into chaos by abandoning a pledge to stop the franc from appreciating against the euro.

Time to be bold on tax reform

Taking comprehensive tax reform, including a GST rise,- to an election would give Australians a chance to vote for growth.