The Federal Treasurer, Scott Morrison, has told an audience of financial services executives and professional investors that the economy is improving, while repeating the mantra that a Royal Commission into the banking sector remains off the table.Global forecasts are being upgraded, not downgraded, he added during his presentation, at Bloomberg's Sydney headquarters, on "The economics of opportunity"."The labour market has strengthened, and that this was being matched in other parts of the economy," he asserted. "We are also seeing some encouraging signs of a pickup in business investment. …, as the Reserve Bank Governor has observed, with the transition from the mining investment boom 'almost complete'," Morrison said, before launching into a tirade against political opponents, which claims small shifts in policy."And when your wages haven't budged in a while, despite the fact you are still working hard and putting in the long hours, the stress on your household budget begins to bite."This is not just a problem we are facing in isolation; wage growth has been weak in many developed economies, as the global economy transitions out of the post GFC funk that has lingered longer than most had predicted."Joint RBA and ABS research has found that as at September 2016, fewer than 10 per cent of jobs whose wages were changed received pay rises in excess of four per cent, the lowest level since at least 2000."Over the past five years, real wage growth is less than half what is was in the preceding decade, giving rise to "the politics of envy" a state of affairs the treasurer laid at the feet of Labor leader Bill Shorten"We are making strong progress as a Government and a country in a dynamic and uncertain world," the Treasurer reiterated. "Our economy has proved as resilient as it has prosperous and it is our intention to keep it that way by continuing to make the right choices and thereby secure the better days ahead.In the Q&A discussion following his formal speech, the Treasurer re-iterated the Turnbull Government's intentions that Australia's AAA credit rating is maintained with all three major ratings agencies, drawing a question from Nick Bishop, from Aberdeen Standard Investments: "what is the economic advantage of the AAA credit rating?"The Treasurer responded that maintaining the AAA credit rating imposes a strong discipline on governments to ensure they're managing household debt issues.He was also asked: "In the wake of the banking tax, one of the concerns that has been mentioned is that you might spring some more surprises on the financial and other industries, can you reassure them on that?"The Treasurer rejected that, noting: "We're certainly done on super, I can assure you of that. And as I've said about the bank levy, we set it at the level we thought it should be set at. Brett Le Mesurier from Velocity Trade then asked about for the government's expectations of the outcome of the prudential inquiry that APRA is going to undertake on Commonwealth Bank.This was brushed aside: "I think