I believe you will find the call for papers below interesting – papers can be written in Spanish, English and Portuguese.
2010 IBRAC – TIM PRIZE
NATIONAL CONTEST OF PAPERS ABOUT COMPETITION
For undergraduate students
R$ 4.000,00 – 1st place
R$ 2.750,00 – 2nd place
R$ 1.250,00 – 3rd place
For postgraduate students and professionals
R$ 10.000,00 – 1st place
R$ 7.000,00 – 2nd place
R$ 5.000,00 – 3rd place
Furthermore, the winning papers will be published in IBRAC Competition Review.
Deadline to submit the papers: 3rd November 2010.
The regulations for the contest are available at here.