1. When demand and supply curves shift simultaneously, what would be the factors that determine the magnitude of the changes in equilibrium price and quantity? Tea is a popular beverage among Asians, Americans, and Europeans, especially during rainy seasons. This is because tea, having curative properties like flavonoids and poly-phenols for typical ailments like headaches, sore throat, fevers and colds, is associated with a “healthy” brand value.1 Changes in awareness, income, prices of other goods, and other factors causes demand to change; variations in cost of production, climatic conditions, technologies, or prices of related goods causes supply to change. Any changes in equilibrium price can, therefore, be caused by either changes in demand or supply. As such, an increase in the equilibrium price can be caused by either an increase in demand or a fall in supply. So how does an increase in demand lead to an increase in the equilibrium price?