To analyze the effects of prospective policy changes, sectoral and economy-wide modelers need to begin with baseline estimates of policy induced price distortions. Global trade modelers mostly use the Global Trade Analysis Project (GTAP) protection database, which currently relies heavily on...

The development of global computable general equilibrium (CGE) models lagged behind development of national models as globally consistent datasets were not readily available and software and hardware were generally not up to the task. As the latter improved and data became more readily available...