Australian shares up across the board at midday

The local share market is on the rise for a third morning, with every sector gaining ground ahead of Wednesday's crucial US inflation data. At noon AEDT on Tuesday, the benchmark S&P/ASX200 index was up 40.8 points, or 0.57 per cent, to 7,239.8, while the broader All Ordinaries was up 41.4 points, or 0.55 per cent, to 7,450.7. Overnight the US Labor Department is set to announce US consumer price index data for November, with annual headline inflation tipped to tick lower to 3.1 per cent, from 3.2 per cent the month before. Shortly before lunchtime, NAB reported through its Monthly Business Survey that the economic outlook and…