No offense to anyone..
But, economics and stock market may be related to an extent, but not interdependent, i suppose.
in terms of size of economies, Japan used to be where China is, for sometime now until 1992, after which its GDP started to drop. China's rose after that.
UK was where USA is now in terms of economical dominance, in the 1800's.
India and china had the highest GDP's in the world up until the 16th century.
And, in this modern world, anything can change in matter of no time. China replaced Japan in less than a decade in the 1990's.
The dynamics of economies can change from time to time, dependent on social, geo-political, commercial and defense related situations. More current factor to add to that dynamics will be a pandemic such as Co-vid.
Who is to predict that if Australia forges a more formidable pact with the UK, USA, India and Japan; the trade partnerships between China and Australia will not seemingly be the same.
Just a thought. No offense.
P.S - Please read the following article on CNBC:
"The 'Quad' is on the rise in Asia-Pacific
Game theory has a prediction about its futureTed KempPublished Thursday, September 23, 2021 10:03 PM EDTUpdated Friday,
September 24, 2021 8:49 PM EDTThe 'Quad' is on the rise in Asia-Pacific:

Game theory has a prediction about its fute

Ted Kemp
Published Thursday, September 23, 2021 10:03 PM EDT
Updated Friday, September 24, 2021 8:49 PM EDT