you're the one looking right? so your subject needs to be "I", not poor economy
at a quick glance, your essay seems well written, but too heavy with theory. I also aim at an economics major, but frankly, the information you provide in this essay are wayyyy too specialized. It's not bad, but I doubt the one reading your essay will be an economic major.
More importantly, it's not personal enough. Sure, big ideas are nice and it's great to know that you understand economics, but the reader doesn't understand YOU as a person. You need not to provide your knowledge on economics, but on WHY you like economics and WHY this discipline INTRIGUES you. (The prompt ask for curiosity, not everything you know about Econ)
It's nice to say that your interest for econ grew from your love for your country, but you're obviously still a LONG shot from being able to change your country's policies. Therefore, making this your ONLY reason to like economics seems very fluffy and "fake" in a sense. You really don't have any credibility as a senior to say that you'll save your country one day, and that's why you should be accepted.
My suggestions: You need to make WHY you like Econ as your main point, and incorporate an event/anecdote, something dramatic that happened to you that changed your perspective of econ or that made you realize your love for it. Your essay has to touch the reader's heart and convince the admin that you truly love econ. This can't be done through sprouting big theories about econ, but only through a truthful and down to earth story.
Personally, I wrote how I at first thought Econ as a social studies course like history, which I absolutely loath, but realized how this is a very broad subject and incorporates many of the things I liked, math and such. Also, as an immigrant who "earned" many interests and talents, I feel that Econ, a multifaceted subject, was perfect for me.
I'm not saying that that's what you should do, but you really need to show the reader that you really like econ through any means necessary.