I like and upvoted this comment, and agree with most of the points that you make therein but feel that it does not support your (implicit) suggestion that donating to the CPC is one of the best uses of charitable funds.

Again, you have not address NancyLebovitz's questions. If we don't have a model for how the CPC is promoting poverty reduction by economic development then we can't conclude that donating to the CPC is likely to promote economic development.

Now, it could be that according to a reasonable Bayesian prior the expected value of donating to the CPC is sufficiently high so that it would be a good charitable investment, but my knowledge of the situation is too poor for me to be convinced; I'd need to hear more about your implicit reasoning (your thinking about unintended negative consequences, unintended positive consequences, counterfactuals) to understand where you're coming from.

Does it matter that we don't know why?

Yes. "I have but one lamp by which my feet are guided, and that is the lamp of experience. I know no way of judging the future but by the past." Presumably we are not discussing the CPC in a charity context solely out of a historical interest, but to guide our future actions.

Paul Krugman writes:

"The leaders of those [frighteningly fast growing] nations did not share our faith in free markets or unlimited civil liberties. They asserted with increasing self confidence that their system was superior: societies that accepted strong, even authoritarian governments and were willing to limit individual liberties in the interest of the common good, take charge of their economics, and sacrifice short-run consumer interests for the sake of long-run growth would eventually outperform the increasingly chaotic societies of the West. And a growing minority of Western intellectuals agreed."

He is speaking of Russia, of course. Krugman then goes on to say that the growth was perfectly explicable by normal industrialization and not by any special governing factors (no 'your legal kung fu is best'):

"Communist growth rates were certainly impressive, but not magical. The rapid growth in output could be fully explained by rapid growth in inputs: expansion of employment, increases in education levels, and, above all, massive investment in physical capital. Once those inputs were taken into account, the growth in output was unsurprising--or, to put it differently, the big surprise about Soviet growth was that when closely examined it posed no mystery."

So. I think no one here would suggest that donating to the CCCP (rather than CPC) would have been very effective, nor did the CCCP government offer much worth imitating.

If the CCCP didn't, the Outside View asks, what makes the CPC different?