View source for Xavier Sala-i-Martin

[[Image:XavierSala-i-Martin.jpg|thumb|200px|Xavier in one of his trademark crazy suits]]
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'''Xavier Sala-i-Martin''' is an economics professor known for his whacky suits and genius in math and economics. One of the most-cited economists on the planet, but you'd never know it from the way he acts. Anyone who has taken a class with him quickly becomes familiar with his [http://www.columbia.edu/~xs23/ crazy website], which has to be seen to be believed.

His name is pronounced Cha-vee-ay, not Ha-vee-air. Not X-A-vier. And especially not "[[Professor X]]." 
Without a doubt, he will tell you this on the first day of class. As well as the fact that he is Catalan and ''not'', he will insist, Spanish. 

== M&M Peanut Minute ==
[[Image:MMWinner.jpg|thumb|200px|Xavier awards the M&M Peanut Minute Certificate of Honor to the Spring [[2006]] winner]]
In his Macroeconomics class, he assigns one question each class as the "M&M Challenge" question. A correct answer in front of the entire class earns the student a bag of M&M's after class, a listing on the [http://www.columbia.edu/~xs23/columbia/ec3213/m&mboard2006.htm M&M Board of Honor], and a point in the semester's M&M Peanut Minute competition. At the end of the semester, the student with the most points is given a big jar of peanut M&M's and a certificate of honor from Xavier, who dresses even crazier than usual for the "award ceremony".

== External links ==
* [http://www.columbia.edu/~xs23/ Xavier's Web Page]
* [http://www.goodnewsindia.com/Pages/content/economy/salaIMartin.html "Xavier Sala-i-Martin Questions Global Poverty Numbers", Good News India]

[[Category:Economics professors|Sala-i-Martin, Xavier]]