If you open a wormhole and goods can hop across light‑years in a blink, the whole market structure collapses into a single supply chain. Prices will be set by a few key players who control the gateways, and anyone without access will be shut out. Competition will shift from production cost to logistics dominance—control the portals and you own the world. In the short run, supply spikes, but then the market will over‑adjust, leading to volatility and new regulation battles. It’s a game of who can out‑maneuver the others at the gates, not just who makes the product.