This chart uses the dependency wheel series with bidirectional link data (weight and weightTo) to create a chord diagram. Each ribbon connects two countries: its width at the from node is the export volume (weight), and its width at the to node is the return flow in the opposite direction (weightTo). Compare this with the dependency wheel demo, where links only define weight — ribbons keep the same thickness on both ends, which suits one-way flows. Here, the data are illustrative cross-border electricity trades (GWh); Norway is highlighted in the colour palette.