It worked then... Why can’t we use the method that curbed Gangnam home prices now? / Professor Kim Kyung-min (Part 2)
An independent exercise, not a statement by the video creator or verification of every claim in the video.
Does a faster train also mean a faster commute?
Hypothetical route A takes 15 minutes to reach the station, 8 waiting, 17 on the train and 10 walking afterward, totaling 50 minutes. Route B takes 5, 3, 25 and 7 minutes respectively, totaling 40. A has the faster train, but B is 10 minutes shorter door to door. Comparing access, waits, transfers, walking and variability helps avoid judging locations only by distance to a station or train speed.
Check for yourself
- Are the times compared for the same departure time and weekday?
- Are access, waiting, transfers and walking included?
- Are planned openings distinguished from currently usable routes?
Limits of application
15, 8, 17, 10, 50, 5, 3, 25, 7, 40 and 10 minutes are assumptions. They estimate neither real schedules, fares, crowding nor property appreciation; delays, crowding and mobility constraints require separate checks.
- What to look for
- Examine housing supply through land, presales, construction and occupancy alongside transport and jobs, rather than announced units alone.
- Why it matters
- Separate assumptions behind price forecasts from execution conditions by checking timing, substitution, affordability and public obligations attached to rental incentives.
Timeline
7 segmentsThe speaker argues that presale alternatives may redirect existing-home demand and discusses reducing land, construction and upfront financing burdens. Presales alone are not established as the cause of past price declines. Substitution depends on location, eligibility, price and credible timing; preselling does not immediately create homes. Shared equity, gradual ownership and longer mortgages are distinguished as proposals, with lower monthly payments not necessarily reducing total interest or purchase cost.