I can't adequately answer the positive side of this question, but on the negative side it's worth noting that a lot of western economic policy, especially in the US, is notoriously bad and out of step with Keynesianism and its relatives, with the whole thing being steered by financiers who don't actually care about the generally economy running well.
On the positive side, I am way less qualified than our Mandarin-speaking friend, but I think a lot of what China gets right is either similar to what you also see the more rational capitalist states get right, or it is politically capable of doing things those other states can't because of the necessity of the state maintaining a degree of control over private power for national sovereignty reasons. I don't think it has much to do with Mao other than China being sovereign in the first place. It's really more of a nationalist thing than anything.
I usually see it called Foundations of Leninism (and there's a great audiobook that I listened to that used that title), so it's possible your translation is weird. AB is right, Stalin wrote very bluntly and with a sense of severity, though I don't think it's normally all that confusing or anything. Maybe a bit under-explained, though.
I think this was the audiobook, since I've listened to a lot of this guy's readings: https://www.youtube.com/watch?v=sPC5ADHHbSk