1. Input-output economics, the foundation of CGE & GSC (a) the input-output table (b) national accounts (c) the one-country input-output model (d) the Leontief paradox (e) effective rates of protection (e) the multi-regional or multi-national I-O model - starting point for CSC analysis 2. CGE modelling (a) Johansen’s model of Norway (b) Johansen’s solution matrix versus Leontief’s inverse (c) trade in a CGE model, Armington to Melitz 3. Applying existing CGE models to supply chain issues (a) Walmsley & Minor on reversing NAFTA (b) Dixon, Rimmer and Waschik on Buy-America(n) 4. Towards a CGE model with supply chain features: designs, components, assembly and sales 5. Concluding remarks