Why does new housing supply respond slowly to a sudden jump in demand?
Correct Answer
B) Land, approvals and construction take months to years
Land assembly, approvals, infrastructure and construction take time, so existing housing stock cannot immediately expand to meet a demand jump. The length and responsiveness vary with local capacity and restrictions. This does not establish a fixed nationwide development period.
Why This Is the Correct Answer
Option B is correct because land assembly, approvals and construction take months to years. Real estate projects often take years from conception to completion. That delay means existing stock cannot quickly expand to meet a sudden increase in demand.
Why the Other Options Are Wrong
Option A: Builders wait for prices to fall before starting new homes
Option A, builders waiting for prices to fall before starting homes, reverses typical builder behavior. Rising demand and prices usually encourage building; the delay comes from the time needed to develop.
Option C: Lenders refuse to finance in rising markets
Option C, lenders refusing to finance in rising markets, is not a general rule. Lenders commonly finance construction in strong markets; financing availability varies but does not explain the basic lag.
Option D: Building codes cap the number of annual starts
Option D, building codes capping the number of annual starts, misdescribes building codes. Codes set construction standards, not a limit on how many homes can be started.
Demand sprints, supply walks
Demand can change quickly, but supply takes time to catch up because building takes time.
How to use: Use this image to explain short-run price pressure after a demand jump.
Exam Tip
Look for an answer about the time needed to develop. Be skeptical of choices that claim a fixed rule or legal cap.
Common Mistakes to Avoid
- -Believing building codes cap housing starts
- -Assuming supply can respond immediately to demand
- -Assuming a fixed nationwide development period
Concept Deep Dive
Analysis
This question tests why the supply of real estate adjusts slowly. New housing requires land, approvals, infrastructure and construction, all of which take time. As a result, supply cannot expand immediately when demand jumps.
Background Knowledge
Real estate supply is slow to respond because development involves land acquisition, planning, permits, infrastructure and construction. In the short run, supply is largely fixed, so a demand increase tends to push prices up first. The length of the lag varies with local capacity and regulations.
Real-World Application
A large employer opens a plant, and demand for housing jumps. New subdivisions take a year or more to approve and build, so prices rise in the meantime. The appraiser notes this short-term supply constraint in the market analysis.
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