ACCA Advanced Performance Management (APM) Practice Exam

In a typical demand graph, price is considered the independent variable because it is the factor that consumers adjust their purchasing behavior around. When analyzing demand, the price of a good or service is plotted on the vertical axis while the quantity demanded is plotted on the horizontal axis. As price changes, it influences how much of a product consumers are willing and able to purchase. This relationship is fundamental in understanding the law of demand, which states that, all else being equal, an increase in price tends to lead to a decrease in quantity demanded, and vice versa. Thus, price is used to establish the demand curve, showing how quantity demanded varies according to different price levels. The other variables mentioned, such as quantity, demand, and supply, are influenced by changes in price rather than dictating it, which is why price holds the role of the independent variable in this context.