From what I have observed, people in the progress movement are a lot more focused on expansion of the global economy. EAs typically focus on the individual actions one can take. Specifically EAs don't emphasize the positive-sum nature as much since they are directly looking at one's own expenditure versus giving to effective charities. Do the people in the progress movement agree with Peter Singer's drowning child argument? I would think if one wants to expand economic growth, giving to effective charities (in scientific research, developing country donations, etc.) would be better than spending for oneself.
I am curious what you think about it. Do you have any refutation of the argument? Is the opinion one your willing to share?