This model depicts the yearly effects of the buyers and suppliers in the real-estate marketplace within the next 50 years. It gives an insight of how variables within the housing market interact with each other.
It shows a cycle of Residents (left-side). Once they become interested in buying a property and become home buyers, they are back to becoming homeowners. The Birth Rate has been added because household owners can breed and have their children to grow up becoming interested in buying a property. Once they become interest in buying, this instantly increases the Demand. As a result, the Interest Rate also affects the interest of home owners, has the higher the interest rate, the less likely they would want to buy.
Another cycle is the Properties cycle (right-side). Similar to the Birth Rate, there is the Construction Rate which gradually increases over time as new buildings are built and are entered in the market place. Once it is on sale, it gets sold and remains on the market.
Ultimately, the Price affects and is affected by the Supply and Demand. The higher the Price is, the less of the Demand as residents would rather buy a property at a cheaper rate. As a consequence, the higher the Price, the higher the Supply is as no one is there to buy property and the number of Supply is accumulate due to construction. Simultaneously, as the number of properties (Supply) available on the marketplace increases due to construction, the number of people interested in buying (Demand) decreases since there are more properties for them to buy. This is how the Supply, Demand and Price clash with each other.
The Inflation Rate has been added, as it can increase the number of properties since this gives a good opportunity for investors to add properties to the market.
During the simulation the graph, if the Interested in Buying (Demand) line intersects with the Properties on Sale (Supply), this is an equilibrium which means there is just enough properties for the amount of people (e.g 60 houses for 60 homebuyers). However, if the Supply is less than the Demand, than there is a shortage, meaning the construction rate should be increased.
Below are sliders which the users can adjust showing how each of the variable have an effect on each other.