Is there somewhere I can read more about it? Because there are democratic socialist countries doing quite well (especially in Scandinavia), and autocracies of all kinds doing poorly (like Venezuela).
Contrary to popular myth, the model socialist Scandinavian country, Sweden, is not socialist. [0]
They were more socialist in the 1970s, when the country suffered greatly under the socialist government. Popular writer Astrid Lindgren was taxed 102% of her income at one point. [1]