Australia has ranked third in Mercer's global pension index with a score of 77.9, following Denmark at 80.5 and the Netherlands at 80.1.
However, the country's overall score had dropped 1.7 points since 2015, primarily due to a reduction in the net replacement rate.
The index found Australia's pension adequacy dropped from 81.2 in 2015 to 76 in 2016, its sustainability increased from 72.1 to 74.1, and integrity dropped from 87.6 to 86.1.
Mercer said the score for Australia's system could be increased by:
Despite the high ranking, Australia was not the top country for any indicator with the Netherlands claiming the top spot for adequacy, Denmark for sustainability, and Finland for integrity.
The two funds have announced the signing of a non-binding MOU to explore a potential merger.
The board must shift its focus from managing inflation to stimulating the economy with the trimmed mean inflation figure edging closer to the 2.5 per cent target, economists have said.
ASIC chair Joe Longo says superannuation trustees must do more to protect members from misconduct and high-risk schemes.
Super fund mergers are rising, but poor planning during successor fund transfers has left members and employers exposed to serious risks.