> Demand is elastic. If the price of potatoes rises to $1000 / kg most people will switch to using pasta or rice for their dinner instead. There might be a shor

> Demand is elastic. If the price of potatoes rises to $1000 / kg most people will switch to using pasta or rice for their dinner instead. There might be a shortage of potatoes at $1 / kg, but not at $1000 / kg. The year 1845 called, and they'd like a word