Joshua Chan, Gary Koop, and Simon Potter, "A Bounded Model of Time
Variation in Trend Inflation, NAIRU and the Phillips Curve", Journal
of Applied Econometrics, Vol. 31, No. 3, 2016, pp. 551-565.

Our data consist of quarterly CPI inflation rates and (civilian
seasonally adjusted) unemployment rates from 1948Q1 to 2013Q1 (261
observations) obtained from the Federal Reserve Bank of St. Louis
economic database. The first and second columns of the data file
contain, respectively, the inflation rates and the unemployment rates.

The data file ckp-data.txt is an ASCII file in DOS format. It is
zipped in the file ckp-data.zip. Unix/Linux users should use "unzip -a".

Please address any questions to:

Joshua Chan 
joshua.chan [AT] anu.edu.au