I think you have an outside shot at Duke, Michigan, Yale. The top top schools like Chicago, MIT, etc require a god profile (as its called on the econ board). I'm not sure how much math you have,but I assume it includes ODE (maybe PDE), some stats/probability, and maybe real analysis. This is good but for top 20 schools I feel like its the norm. Many admits to the big name schools have a really sexy quant background (hell, some have PhDs or ABD in physics/math). Also, your research experience is a bit light for big name schools.
The good news is that I'm sure you can pull some good recs since you are at a solid program now (is it UCLA or Yale...I know both of these schools have international econ programs). Also solid grades/gre. I like your chances for the second batch of schools you mentioned.