Market Impact of a Consumer Trend

Consider a market with a demand function given by $Q^D = 150 - 3P$ and a supply function given by $Q^S = 2P$. Suppose an external event causes an increase in the quantity demanded by 50 units at every price level. What is the new equilibrium price and quantity in this market after the event?

Calculating New Market Equilibrium After a Demand Shock

In a market with a standard upward-sloping supply curve and a downward-sloping demand curve, a positive demand shock that increases the quantity demanded by 20 units at every price will result in the new equilibrium quantity being exactly 20 units greater than the original equilibrium quantity.

The market for a specific type of grain has a supply function of $Q^S = 20 + 3P$. After a government report highlights new health benefits of this grain, the demand increases, and the new demand function is $Q^D = 200 - 6P$. Arrange the following steps in the correct logical sequence to algebraically determine the new equilibrium quantity in this market.

Analyzing the Market Adjustment Process to a Demand Shock

Consider a market with an initial demand function $Q^D = a - bP$ and a supply function $Q^S = c + dP$. The market experiences a positive demand shock, causing the quantity demanded to increase by a constant amount, $\Delta Q$, at every price. Match each concept from the analysis of this shock to its correct algebraic expression.

Consider a market for widgets where the demand function is $Q^D = 100 - 2P$ and the supply function is $Q^S = 10 + P$. A new advertising campaign causes a positive demand shock, increasing the quantity demanded by 30 units at every price. After the shock, the new equilibrium price in this market will be ____.

A competitive market is described by the demand function $Q^D = 120 - 2P$ and the supply function $Q^S = -30 + 3P$. If a positive demand shock increases the quantity demanded by 25 units at every price level, what will be the resulting change in the equilibrium price ($\Delta P$) and equilibrium quantity ($\Delta Q$)?

Consider two separate markets, Market A and Market B, which are initially in equilibrium. Both markets experience the same positive demand shock, causing the quantity demanded to increase by 40 units at every price.

• Market A: The supply function is $Q^S = -40 + 4P$ and the initial demand function is $Q^D = 200 - 2P$.
• Market B: The supply function is $Q^S = 20 + P$ and the initial demand function is $Q^D = 200 - 2P$.

How does the resulting change in equilibrium price ($\Delta P$) compare between the two markets?

In a market with a standard upward-sloping supply curve and a downward-sloping demand curve, a positive demand shock that increases the quantity demanded by 20 units at every price will result in the new equilibrium quantity being exactly 20 units greater than the original equilibrium quantity.