Uncovering the factors behind comparative regional economic performance: a multi-regional computable general equilibrium (CGE) approach, Regional Studies. Recently, a new method has emerged for uncovering the factors driving regional growth disparities. The method involves historical analysis with a multi-regional computable general equilibrium (CGE) model. This paper has three main aims. First, to demonstrate the capacity of the CGE historical technique to decompose the causes of regional divergence into clearly specified economic factors. Second, to provide a generic miniature model that can be used as a template for adapting any multi-regional CGE model to give it the capacity for undertaking historical analysis. Third, to demonstrate that this same miniature model can be used to explain the regional results in terms of the major model mechanisms behind them.