Modelling trends and cycles in economic time series has a long history,
with the use of linear trends and moving averages forming the basic tool
kit of economists until the 1970s. Several developments in econometrics
then led to an overhaul of the techniques used to extract trends and
cycles from time series. Terence Mills introduces these various
approaches to allow students and researchers to appreciate the variety
of techniques and the considerations that underpin their choice for
modelling trends and cycles.