There is definitely evidence of shoe shortages in the Soviet Union - enough that it's a running joke.
A quick Google turned up this post:
https://www.econlib.org/archives/2009/09/soviet_shoes.html
which cites this book:
https://www.amazon.com/Dismantling-Utopia-Information-Ended-...
I'm not sure if there will be better evidence, given the USSR's propensity to pad their stats.
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There is definitely evidence of shoe shortages in the Soviet Union - enough that it's a running joke.
A quick Google turned up this post:
https://www.econlib.org/archives/2009/09/soviet_shoes.html
which cites this book:
https://www.amazon.com/Dismantling-Utopia-Information-Ended-...
I'm not sure if there will be better evidence, given the USSR's propensity to pad their stats.