Individual unemployed-worker and vacancy particles meet in a 3D matching market; every micro-level match feeds the same Cobb-Douglas matching function and builds the real Beveridge curve live.
EconomicsLabor Market3DThis 3D scene visualizes the micro-foundations of the Beveridge curve: rather than only plotting aggregate unemployment (U) and vacancy (V) rates, it shows the individual unemployed quantum-sector workers and open quantum-industry vacancies as particles that physically drift together and merge when they meet. Each merge is a real hire, exactly as counted by the Cobb-Douglas matching function M = A·U^α·V^(1-α) that governs the aggregate flow equations dU/dt = s(1-U) − M and dV/dt = c(1-V) − M. Raising the training-investment slider A shrinks the effective matching radius, so particles pair off faster — visibly thinning the unmatched population and pulling the floating Beveridge chart's curve inward toward the origin, the same real, empirically observed effect shown in the companion 2D simulation.
Blue particles are individual unemployed quantum-sector workers and amber particles are individual open quantum-tech vacancies, both drifting through a shared 3D matching-market space. When a worker and a vacancy particle drift close enough, they merge in a bright match flash and are removed — a micro-level hire.
Every match event increments the aggregate hire count for that instant. The resulting flow of hires drains the modelled unemployment and vacancy stocks exactly as in the underlying Cobb-Douglas matching function M = A U^α V^(1-α), and the same (U, V) path is plotted on the floating 2D chart inside the scene — so the aggregate curve is literally built up from the visible micro-level matching events, not computed separately.
A higher A shrinks the "meeting radius" at which nearby worker and vacancy particles match, in effect speeding up how efficiently the two clouds find each other. Visually, more merges happen per second and the population of unmatched particles stays lower, while the floating Beveridge chart's curve pulls inward toward the origin.
Yes — drag to orbit, scroll or pinch to zoom, exactly as in any Three.js OrbitControls scene. The floating Beveridge chart panel stays oriented toward the camera so it is always readable while you look at the matching space from any angle.