I’m pretty sure it’s smartphones and aging society.
I’ve been gathering data on the natural experiment that occurred due to differences in proliferation of smartphones across countries. The sex surveys aren’t consistent but that is a very strong factor. Look at the hockey stick curve in the paper here.
The rest of the decline is (in my evaluation) best explained with the increase in average age of the 18-64 year old demographic.
I’ve been gathering data on the natural experiment that occurred due to differences in proliferation of smartphones across countries. The sex surveys aren’t consistent but that is a very strong factor. Look at the hockey stick curve in the paper here.
The rest of the decline is (in my evaluation) best explained with the increase in average age of the 18-64 year old demographic.