Final answer:
To demonstrate seasonal changes on the demand curve for ice creams, you would shift the original demand curve (Do) left or right to reflect lower or higher demand during winter or summer, respectively. These shifts are caused by seasonal changes affecting the quantity demanded at each price, not by changes in the price of ice creams themselves.
Step-by-step explanation:
To show seasonal changes in the demand curve for a product like ice creams, you would illustrate shifts in the curve. Assume you have two demand curves: Dsummer representing the high demand during warmer months, and Dwinter indicating the lower demand during colder months.
Step 1: Original Demand Curve
Start by drawing a traditional demand and supply model with the original equilibrium. This will show your initial demand curve, Do, and your initial supply curve, So.
Step 2: Shifts in Demand
Next, to illustrate the seasonal increase in demand for ice creams during summer, the demand curve would shift to the right, from Do to Dsummer. This represents a higher quantity demanded at each price point due to the season's impact.
Step 3: Showing Seasonal Decrease
Conversely, during winter, show the reduced demand by shifting the demand curve left from Do to Dwinter. This indicates a lower quantity demanded at every price due to the colder weather.
A shift in demand happens when a non-price economic factor causes a different quantity to be demanded at every price. The original demand curve (Do) is based on the ceteris paribus assumption where no other economically relevant factors change. The outward or inward shift signifies an increased or decreased demand due to seasons. It should be noted that these are shifts in the demand curve itself, not movements along the demand curve, which occur due to changes in the price of the good itself.