<p>Nash hasn’t taught in the econ department recently (nothing after 2009 that I can find), Maskin is going back to Harvard (and on the few occasions he has taught, they’ve been graduate courses in mechanism design), and Kahneman hasn’t taught in the econ department recently. Sims is taking a sabbatical this coming year (though he does still teach undergrads, as he taught Money and Banking last fall), and Sargent won’t be visiting again next year, though maybe in fall 2012 (but Sargent has taught the graduate macro sequence exclusively). If you want to take an econ class with someone who could (and I think should) win the Nobel, Nobu Kiyotaki teaches intermediate macro (and he is possibly the nicest person you will ever meet).</p>
<p>(I speak as a grad student in the econ department).</p>