The program "cdecalib.gms" written in GAMS implements the three-step procedure for calibrating the CDE system.
To run it, one needs: 1) the GTAP 8 data in the gdx format (created by GTAP8inGAMS) with desired resolutions for regions,
sectors, and production factors; and 2) the subroutine "gtap8data.gms," which is presented in GTAP8inGAMS, that reads
data for parameters needed in the calibration program.  To calibrate the system using the database "1r16s2f.gdx," under
the DOS command prompt, type "gams cdecalib --ds=1r16s2f".

The program "cdeetp.gms" written in GAMS implements the maximum entropy approach for calibrating the CDE system.  
The code is the revision of "cde.gms" provided by the GTAP center.  All algorithms are unchanged.  Some notations 
for variables or parameters are changed to those consistent with GTAP8inGAMS to faciliate the process of reading 
data prepared by GTAP8inGAMS.  To calibrate the system using the database "1r16s2f.gdx," under the DOS command prompt,
type "gams cdeetp --ds=1r16s2f".
