In the real-estate domain, buyers (demand) and sellers
(supply) directly influence the price of houses. However, their motivation to
buy and sell is directly influenced in respect to how the median price of
houses is compared to the sensitivity (elasticity) of the actual prices and
demand of houses.
This model will represent how the changes in price elasticity
compared to the median price, affect the supply and demand within the
real-estate domain.
1) Price and Demand Elasticity can be changed between 0-100 to
show variances within the sensitivity of price in the market.
2) Buyers & Sellers are set to 75 however this can be
fluctuated between 0-150 to represent variances within the demand & supply
in the market.
3) Median Price is set to 75 since the total amount of buyers
and sellers within the market is set to a maximum of 150. 75 is therefore the
‘median’.
4) Interest rates are also a factor in the demand of houses and
influence the motivation for Buyers. If interest rates are high, Buyers are
less motivated to buy due to increase in mortgages, therefore having a decrease
in the demand and vice versa for when they are low. The following equation
compares the price of houses to the median price, and if this condition is
true, will apply Interest Rate(s) to the following logic.
if [Price]<[Median
Price] Then
([Interest Rate]+[Demand Growth
Ratio]-[Demand Growth Ratio])*[Buyers] end if
5) The price of houses is directly influenced by elasticity of
demand and price within the market place. For example; if the elasticity of
demand is relatively inelastic, the percentage change in the amount of houses
demanded is smaller than that of the price. The following equation applies the
logic listed above.
60-[Supply Elasticity of Price]/100*[Total Sellers]+[Demand Elasticity of Price]/100*[Total Buyers]+[Price Elasticity of Supply]/100*[Total Sellers]