<p>I don’t think you can wait until junior year because of the sequencing. You really need to plot this out looking closely at the prereqs for each course.</p>
<p>If you are not dead set on London, you could write to Admissions, explain your concern and ask to be considered for a spot in NY. This way you could at least get Econ 1 and 2 out of the way. I have heard of a few students who were able to switch locations.</p>