Glad to see this thread as this question has been keeping me up at night as well. I think getting this right is critical for investment decisions. If we see inflation, then we should buy assets (and leverage up e.g. take up investment loans) as asset prices will increase in future. If we see deflation, then we should sell assets (and deleverage by paying down our loans) and stay in cash as assets will be worth less in the future.
My initial view was inflation because of the increased money supply etc as mentioned by many before. But as Dhukka said "You can print as much money as you like but you can't force people to lend it out or borrow it." After the bursting of a major asset bubble where people got into trouble from over leverage, the natural reaction for people to deleverage and start saving as we have seen in the US. This tends to cause deflation rather than inflation, as frugality becomes the new normal.
The most recent evidence for deflation, is Japan since their asset bubble burst in 1989. If you look at chart of the Nikkei index, you will see it has been in a downtrend since 1989. According to
Wikipedia, their property prices never came back and the average price of residential property is only a tenth of what it was at the peak and this happened despite many rounds of government stimulus/spending. Their most recent forecast for CPI is still a negative number and is expected to remain negative for the next few years.
However, this is the case for countries where an asset bubble has burst and may not apply yet to Australia. From what I have seen in the past few months, our property bubble is still intact as property prices have gone back to and even exceeded the pre-GFC levels in some areas in Melbourne. For Australia, maybe it will be inflation for a little while longer as we escaped a recession. That's my 2 cents worth.
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