Season 1 Episode 4: Rooms at the Inn are sold out – the quantity demanded exceeded the quantity supplied. Because of this, Tyrion offers a big premium to anyone who will sell him their room. This increase in price is consistent with market analysis when demand exceeds supply. It is also what we see in markets for events that are sold out but in high demand. For example, big sporting events often see this occur. Peak pricing is also used by the ride-share app Uber during times when demand is higher.