We compare the dynamics under myopic foresight and under perfect
foresight in an overlapping generations model with capital
accumulation and two-period lived individuals. When the rational
dynamics are defined and the myopic dynamics are monotonic, the
study of myopic foresight allows to characterize the dynamics under
perfect foresight. The study of myopic dynamics also allows to
obtain a condition of uniqueness of the steady state that bears
only on the second order derivatives of the utility and production
functions.