1.20 16, the real estate market in Nanjing is unprecedentedly hot, with frequent land kings and tight policies. Historical data shows that the overall real estate price growth rate in Nanjing reached an unprecedented height in 20 16. From 20 12 to 20 18, the average house price growth rate reached a historical peak of 36.09% in the third quarter of 20 16, showing an irrational market situation. Generally speaking, the growth rate of house prices exceeds the growth rate of residents' income, indicating that the real estate market is overheated. From March 2065438 to June 2065438, the real estate market in Nanjing was overheated to some extent. From the historical data, there are two main periods when the price growth rate of new houses and second-hand houses in Nanjing exceeds the per capita disposable income of urban residents: the first period is from 65438+ in February 2009 to 2065438+ in March 2000, the price growth rate of new houses in Nanjing exceeds the average growth rate of per capita disposable income of urban residents by 2.6 percentage points, and the price growth rate of second-hand houses exceeds the average growth rate of per capita disposable income of urban residents by 0. In the second period, from March 20 16 to June 20 17, the growth rate of newly-built housing prices in Nanjing exceeded the average growth rate of urban per capita disposable income by 19. 1 percentage point, and the growth rate of second-hand housing prices exceeded the average growth rate of urban per capita disposable income by 14.3 percentage point. It was also at this stage that Nanjing became a typical city with low income and high housing prices, which affected the population inflow in Nanjing in the later period to some extent.

2. The problem of garlic price increase is market failure. In fact, the supply of garlic in the market is flat, but the price of garlic has risen artificially. At this time, the government will intervene.

First, market failure.

1. When the market fails, the market mechanism cannot effectively allocate resources according to people's wishes. It is precisely because the market economy cannot realize the optimal allocation of resources that the state needs to intervene in the market economy to achieve the purpose of optimizing the allocation of resources.

2. The main reasons of market failure are monopoly, public goods, externalities and incomplete information.

3. Fault performance:

(1) Unfair distribution of income and wealth.

(2) The failure of competition and the formation of market monopoly.

(3) unemployment.