This data set contains the series used by Hylleberg, S., R. F. Engle,
C. W. J. Granger and B. S. Yoo (1990), Seasonal Integration and
Cointegration, Journal of econometrics, 44, 215–238.
Usage
data(UKconinc)
Format
A data frame of quarterly data ranging from 1955:Q1
until 1984:Q4. The data is expressed in natural logarithms.