JP Morgan Australia chief economist Stephen Walters said September quarter capital expenditure (capex) data, released last week, showed that growth was slowly strengthening.
Business investment rose by 3.6 per cent in the September quarter, better than the 1.2 per cent fall the market was expecting.
"The partial reads on activity so far have been strong and remove much of the downside risk to third quarter GDP," Mr Walters said.
"Last week's capex report was particularly upbeat, although we don't believe the composition lends itself to any substantial forecast upgrades.
"Elsewhere, construction work increased in both the engineering and construction sectors, while the retail volumes report revealed a much-needed bounce in the third quarter."
The median market forecast for economic growth in the year to September is 2.5 per cent, from 2.6 per cent in the 12 months to June.
- AAP