Miguel's Model of the Real Estate Market and Price Elasticity
This model represents the real-estate market, and the processes and variables in play which influence thatfocus on the effects of Price on the Elasticity of Supply and Demand.
The law of supply and demand states that when there is a
high demand for a good or service. The price of the good or service rises. If
there is a large supply of good or service but not enough demand for the good
or service, the price falls.
The price elasticity of supply is used to see how sensitive
the supply of a good is to a price change. The higher the price elasticity the
higher the sensitivity to price change. A Low price elasticity implies that
changes in price have little influence on supply.
The price elasticity of Demand is used to see how sensitive
the demand for a good is to a price change. The higher the price elasticity,
the more sensitive to price changes. A Low price elasticity implies that
changes in price have little influence on demand.
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Important Variables and Stocks Involved
Old Quantity of Supply
%Change in Quantity Supply
HousesforSale
Old Quantity of Demand
%Change in Quantity Demand
WantingToBuy
Price Elasticity of Supply
Price Elasticity of Demand
%Change in Price
Old Price
New Price
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Within this model to calculate the price elasticity of
supply, the percentage change is first calculated using the Old quantity and
New quantity (HousesForSale).
This percentage change is then divided by the percentage
change of the Old Price and New Price to obtain the Price Elasticity of Supply.
Similarly to calculate the price elasticity of demand, the
percentage change is calculated using the Old quantity of demand and New
quantity of demand (WantingToBuy).
This percentage change is then divided by the percentage
change in price to obtain the Price Elasticity of Demand.
With the slider variables that can be changed are the Old Price and New price which affect the percentage change in price.
The percentage change in price then affects the Price Elasticity of Supply and Demand as it is used in conjunction with the %Change in quantity of Supply and Demand to obtain a value.
If we set the settings and simulate to:
Old Price = 500('000)
New Price = 250('000)
Old Quantity of Supply = 100
HousesforSale (New Quantity of Supply) = 50
Old Quantity of Demand = 10
WantingToBuy (New Quantity of Demand) = 5
We can see that the Demand is a lot higher because the the houses are half the price than the old price.
If we use these settings:
Old Price = 250('000)
New Price = 500('000)
Old Quantity of Supply = 50
HousesforSale (New Quantity of Supply) = 25
Old Quantity of Demand = 25
WantingToBuy (New Quantity of Demand) = 10
We can see that the supply is a lot higher than demand as the new price is twice the amount of the old price.
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With the sliders, these values can be adjusted to see the affect on the Price Elasticity of Supply and Demand.
This Model should have included its effect on the price however, was not added due to problems finding the right equation.