This directory contains codes for generating results in the
appendix of

  Unmeasured Investment and the Puzzling US Boom in the 1990s
  by Ellen McGrattan and Ed Prescott


These codes supercede earlier codes posted on the website.  
My research assistant Yuichiro Waki discovered a relative 
price was missing from one of the intertemporal conditions.  
This is now fixed.

To generate the results reported in the appendix, copy any
one of the .inp files to intang.inp. The perfect-foresight
case uses pf_intang.inp.  The AR(1) cases use se_intang**.inp,
where ** is the parameter rho (at a quarterly frequency).  
Once the input file has been copied, compile the Fortran
code intang.f90 and run the executable.  To see plots of 
the results, run simintang.m in Matlab.


Ellen McGrattan
October 2007