What will happen to the equilibrium price and quantity of coffee if it is discovered to help prevent colds and, at the same time, Brazil and Vietnam emerge in the global market as massive producers of coffee?

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The discovery that coffee helps prevent colds increases demand, pushing both price and quantity up. However, Brazil and Vietnam emerging as massive producers increase supply, which pushes the price down but increases quantity. These opposing effects on price make its final outcome uncertain, while the quantity is expected to increase due to both effects.

What Will Happen to the Equilibrium Price and Quantity of Coffee