TWARGTAP: GTAPv7 model 28x21 aggregation

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Version: TWARGTAP
Model:   Standard GTAPv7 model
Data:    GTAP Data Base version 10.2
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DATA BASE
GTAP 10.2 Data Base with 2014 reference year is used for the benchmark. Aggregation includes 28 sectors and 20 regions.

EXPERIMENTS
gtapv7		numeraire shock
vfretal         implementation of the imp retaliatory tariffs on U.S. vegs, fruits and nuts exports by all U.S. trading partners
uschtars        implementation of ongoing trade frictions between U.S. and China (up to the 2nd round of U.S.-China trade frictions)
alltars         implementation of all ongoing trade frictions between U.S. and its trading partners (up to the 2nd round of U.S.-China trade frictions)
