This zip first contains 2 gdx files for data: 
- newset_insuranceus.gdx defines the sets of commodities/factors/regions
- newdata_insuranceus.gdx gathers GTAP dataset for the year 2011. 

Then we have 3 gms programs: 
- gtapagr-standard.gms is the "standard" GTAP-Agr model reproduced in the GTAPinGAMS format. 
- gtapagr-insurance.gms elaborates on the former model by detailing the US crop insurance programs. Our main contribution is included in this program
- gtapagr-insurance-lognormal.gms is a variant of the former one where the productivity shocks are specified with a lognormal distribution (rather than a normal one)

These 3 programs can be performed independantly. 