We test the Expectations Hypothesis (EH) plus Rational Expectations (RE)
in the Brazilian term-structure of interest rates, using maturities ranging
from 1 month to 12 months, and daily data from 1995 to 2000. We rely on two
methodologies based on single-equation regressions. Our results indicate a
rejection of the EH plus RE, specially at the longer maturity. This may have
important implications for the rational expectations macro-modeling
currently being used to evaluate the conduct of monetary policy in Brazil.
We also show the risk premium in the yield curve are positively related to
the covered interest rate differential and to the volatility of interest
rates.