Bloomberg: Australia will lose investment and trading opportunities should it decide to introduce a fixed price for carbon or limit prices on emissions allowances, Credit Suisse Group’s head of carbon trading said. The “robustness” of the country’s carbon trading system is at risk should the government allow the financial crisis or objections by industry to persuade it to fix the carbon price in the early years of trading, Paul Ezekiel, the bank’s New York- based managing director of carbon …