plenty of chinese economic policy is based on marxian economics, and yes that includes deng and after. it's why you still have western economists soying out and baffled at decisions they make (since they refuse to just study marxian economics) and declaring that it will 1000% fail only for it to succeed. the us also funnily enough consulted a marxian economist (michael hudson) on how to further advance imperial economic extraction (detailed in his book super imperialism).
United States