A world choropleth map colors each country by its economy category using an ordinal color scale. The visualization uses d3 geoNaturalEarth1 projection with d3.geoPath to render countries from TopoJSON data, enriched with world-atlas TSV metadata. A custom color legend component displays the categories, and d3.zoom enables interactive panning and zooming. Country outlines appear in black, with hover effects highlighting individual nations in red.