This paper examines the demand for money in Bolivia during the 1980s,
a decade of extreme instability with annual inflation rates reaching o
ver 20,000 percent, and a subsequent stabilization, with annual rates
falling to less than 25 percent and remaining so for more than five ye
ars. Our empirical analysis makes use of error-correction approaches,
time-varying-parameter estimation with Kalman filtering, and GARCH mod
els of expected inflation and inflation variance. We find that expecte
d inflation and inflation uncertainty both matter for money demand. Ti
me-varying estimates show that the reaction to monetary disequilibria
was significantly faster during hyperinflation.