I hope i get an answer here. How possible and with which effect , is a house bubble In a market where house and land prices are lower than most of the rest European countries and the income per person is a bit over the Eu average ?
I am not sure which country you are referring to, but consider the fllowing concepts;
(i) confidence,
(ii) crowd behaviour
(iii) international money flows
(iv) salesmen
(v) supply and demand
(vi) uncertainty principles
If there is
confidence, then in a deregulated economy global capital markets result in
international money flows switching money into the country and the amount of money available to lend to people to buy houses drastically increases.
Hot money can flow in much faster than construction can increase.
Overall house prices are determined by the transaction prices for houses sold which reflect
supply and demand. Now most houses are not sold this or in any year. So it is the impact of an increase in the money for loans supply against the houses for sale in loan companies' accounting period (e.g. month/quarter/year).
To put it simply, if the amount of capital on offer for loans doubles; then house prices will rise and nearly double. They won't exactly double because new construction will absorb some capital, and house finance from savings won't double inline with external capital inflows.
Now once house prices rise,
confidence encourages investment and
salesmen who very naturally switch to a lucractive market because people respond to social pressure like
crowd behaviour and want to buy before it gets more expensive and many hope to make money by buying for investment.
The more intelligent or experienced know the bubble will burst, but many get over
confident carried away and fall into the logical fallacy trap of believing that they will be able to identify the downturn and get out leaving it to the next fool to purchase into a declining market.
However it is impossible for the peak moment and level to be reliably anticipated and understood by the market, because any such advance understanding would result in a change of participants behaviour that would mean that the peak does would not occur or reach the level where it was previously understood to occur and reach.
This is a bit like Heisenburg's
uncertainty principle.
Land prices and income levels are not the prime consideration.
It is the excess capital bidding up the traded stock that creates the bubble.