“Has the Economy Become More Predictable? Changes in Greenbook Forecast Accuracy”
(all ascii text files are tab delimited)
note that GDP and PGDP files have different formatting (e.g. the dating convention differs)
INPUT FILES (Eviews program files)
to run these you need to save data files in excel (or rewrite the "read" command for ascii format), change the directory on line 3, then run
read_gdp.prg - reads forecasts and actuals of GDP.
read_pgdp.prg - reads forecasts and actuals of PGDP.
PROGRAMS (Eviews program files)
jmcb_tests.prg -- calculates results in tables 1, 2 and 3 for either GDP or PGDP. Having read in either GDP or PGDP data, change directory name in line 1, then set !table equal to 1, 2 or 3 in line 3; then run. This will call the subroutine:
andrews.prg -- calculates Andrews-Ploberger tests
charts.prg -- constructs GDP charts. PGDP charts involve minor and obvious changes to titles etc.