World Models Begin Simulating Economies
A new research blueprint defines economic world models as generative systems where heterogeneous agents, institutions and markets co-evolve, culminating in simulation-to-real economic twins. This is more specific than generic multi-agent simulation and could eventually support policy testing, market design and strategic forecasting. It remains a weak signal because one research paper establishes the architecture but not practical validity; reproducible implementations, calibrated forecasts or institutional pilots would confirm it.