This choropleth map visualizes global economic groupings by coloring each country according to its economy category. The visualization uses a natural Earth projection via `d3.geoNaturalEarth1` and `d3.geoPath` to render country boundaries from TopoJSON data loaded from the world-atlas package. A sequential `d3.scaleOrdinal` with `schemeSpectral` assigns colors, while zooming is enabled through `d3.zoom`. Hovering highlights countries in red, and a color legend explains the ordinal categories.