This interactive choropleth visualizes world countries, colored by economy type and labeled with country names. A hover tooltip displays each country's population, GDP, income group, and continent. The map uses D3's `geoNaturalEarth1` projection and `geoPath` for rendering, with TopoJSON for geographic data. Zoom and pan are enabled via D3's `zoom` behavior, while a categorical color legend uses `scaleOrdinal` with the `schemeSet3` palette to differentiate economy categories.