What does a decrease in supply generally indicate for a product's price trend?

A decrease in supply generally indicates that there is less of a product available in the market. When supply decreases while demand remains constant or even increases, the scarcity of the product leads to upward pressure on the price. This is based on the fundamental economic principle of supply and demand: when there is a reduced amount of a good, consumers are willing to pay more for the limited items available, driving prices higher.

In contrast, a decrease in supply would not lead to falling prices, stable prices, or have no effect on prices, as these outcomes would suggest that the availability of the product is not affecting market conditions in a way that elevates costs, which contradicts the basic interactions of supply and demand.