ok, good flash, nice message, and a truly useful and educative message in the movie (very interesting, and quite easily explained, so you did good there), but i think that this mvoie lacked a bit in animation and/or presentation.
maybe, you should add some animation of how the things work, and or some cartoons, IF you want to put this on newgrounds.
(but only if you want to put a movie in here as an animation)
if you just wanted to show your class a small video/movie flash of how economy works, you could maybe upload it on youtube, or in the NG alphas(experimental movies), or in the NG portal, but labeled as a(n) ''experimental'' film.
it could be better, since the audience in here will not like a text-only movie in here.(and i can understand them, i mean this is an animation site after-all)
anyways, good work, and nice message.
just next time, add some animation/cartoons in it, if you want to submit it in here, because we are a flash cartoons site, and we like the presentations with some spice on them... haha :D