Persistent Excess Demand for Gaming Consoles and the Usefulness of Demand Elasticities

Answer

Part (a) — Why excess demand may be large and persistent [10]

Excess demand (a shortage) arises when, at the prevailing price, quantity demanded exceeds quantity supplied. Here the recommended retail price of $299.99 sits below the market-clearing price, so a shortage exists; its size depends on the shifts in demand and supply and on the elasticities, and its persistence on why the price is not allowed to clear.

Demand rises. Strong sales of complementary games such as Animal Crossing raise the demand for consoles, and check-out bots that let resellers buy in bulk add further willingness-and-ability to purchase at every price; the demand curve shifts right.

Supply falls. Supply-chain disruptions raise the cost of producing and distributing consoles, shifting the supply curve left.

Why large. Demand for consoles is relatively price-inelastic in the short run (perceived lack of close substitutes), so the gap between quantity demanded and quantity supplied at the capped price is wide; the simultaneous outward demand shift and inward supply shift widen it further.

Why persistent. The official price is held below the clearing level, so the price mechanism is prevented from rationing the shortage away. With games sustaining demand and supply chains slow to recover, the gap endures — and is exploited by resellers, who buy at the official price and resell at $410, giving rise to a secondary market at inflated prices.

Part (b) — Usefulness of demand-elasticity concepts to sellers [15]

The relevant concepts are price elasticity of demand (PED), cross elasticity of demand (XED) and income elasticity of demand (YED). Each informs a profit-maximising seller’s pricing and stocking decisions through its effect on total revenue and producer surplus — but each has limits.

PED is useful — and its limits. Resellers face an inelastic demand (few substitutes, buyers of higher income for whom a console is a small income share). Since $PED < 1$, raising the resale price raises total revenue: the revenue gained on inelastic units exceeds the revenue lost on the smaller quantity. With fixed costs already sunk in acquiring the consoles, the seller should raise price while demand stays inelastic. The limits: as new services (Apple Arcade, Xbox on Windows, stronger mobile gaming) add substitutes, PED rises over time, so future pricing must soften; and where the seller lacks price-setting power or accurate information on PED, the concept cannot be applied precisely — explaining the wide spread of asking prices in resale listings.

XED is useful — and its limits. Consoles and platform-exclusive games are strong complements ($XED < 0$, large magnitude): a launch like Animal Crossing raises console demand sharply, so anticipating it lets sellers stock up. Consoles and VR/PC gaming are substitutes ($XED > 0$): the inflated console price raises demand for these alternatives, so their sellers can raise price and stock inventory. The limit: complementarity depends on exclusivity — if hit titles later appear cross-platform, the strong console–game link weakens and XED-based predictions fail.

YED is useful — and its limits. Consoles, VR and PC gaming are non-necessities with high YED, so income data guides output decisions: a COVID-induced fall in income would, ceteris paribus, lower demand and revenue. The limit: income data may be unavailable or its effect muted — US stimulus cheques cushioned incomes, and lockdowns diverted spending toward home entertainment, so the predicted revenue fall need not have materialised.

Generic limits. Across all three, accurate elasticity data is costly to collect and may itself erode margins; elasticities say nothing about costs, so they cannot by themselves secure profit maximisation; and being computed from past values, they may not hold in future.

Judgement. Elasticity concepts are useful but partial tools for these sellers. They are most useful in the short run and for e-Bay resellers exploiting a clearly inelastic, supply-constrained market: PED directly guides the revenue-maximising resale price, while XED and YED guide stocking and the pricing of related products. They are least reliable precisely where the question’s developments point — a fast-changing market in which substitutes proliferate, exclusivity erodes, and income effects are ambiguous, so the elasticities themselves shift. The defensible verdict is that elasticities are indispensable for short-run pricing and stocking decisions but must be used alongside cost information and continually re-estimated, since their values are neither stable nor, on their own, sufficient for the profit-maximising decision.