Why Fine-Dining Prices Rise Faster Than Hawker Prices

Answer

The two factors raise food prices through different sides of the market — rising energy costs through supply, the economic recovery through demand — and in each case the effect is larger for fine-dining food. The question requires each factor to be unpacked independently, so the answer treats them as two requirements.

Rising energy costs — a supply-side effect. Energy is an input to food production: producers need it to cook and to run their premises. A rise in energy costs raises the cost of production, shifting the supply curve of food to the left and raising the equilibrium price.

The rise is larger for fine-dining restaurants because they are more energy-intensive per unit of food: they serve more elaborate, specialised dishes and operate air-conditioned premises with elaborate décor. A given rise in energy prices therefore raises their cost of production by more than a hawker stall’s, shifting their supply curve further left and producing a larger price increase.

Recovery of the economy — a demand-side effect. As Singapore’s economy recovers, household disposable income rises. Food is a normal good, so higher income raises demand, shifting the demand curve right and raising the equilibrium price.

The rise is larger for fine-dining food because of differing income elasticities of demand (YED). Cheap hawker food is a necessity with 0 < YED < 1, so a rise in income raises its demand less than proportionately. Expensive fine-dining food is a luxury with YED > 1, so the same rise in income raises its demand more than proportionately. Demand for fine-dining food therefore shifts right by more, producing a larger price increase than for hawker food.

In sum, on both the supply side (greater energy intensity) and the demand side (higher YED), fine-dining prices rise more sharply than hawker prices.