TY  - JOUR 
T1  - Exchange rate exposure of firms and the demand for foreign exchange derivatives in Brazil: did hedge or speculatiom matter?
JO  - Economia Aplicada
A1  - Oliveira, Fernando Nascimento de
SN  - 1413-8050
UL  - 10.1590/S1413-80502012000400004
VL  - 16 
Y1  - 2012
PB  - Brasil 
ER  -