The objective of this study is to analyze regional value chains in the Spanish economy in order to identify those regions that generate the highest GVA and export it to other areas, thereby becoming generators of economic growth. Through this approach, the results traditionally obtained using the input-output (IO) methodology have been complemented and compared. Special attention is also paid to the case of the Valencian Community, evaluating its position within regional value chains and its capacity to incorporate GVA into its gross exports. Therefore, the study provides an analysis of global value chains for all Spanish regions, also demonstrating that the methodology used is valid for this type of analysis. Keywords: Global value chains; vertical integration; GVA; gross exports; Input-Output Model. JEL Classification: C67, D57, F14, R11.