1.  Market failure is not market function completely paralyzed and it refers to the market which can't efficient allocation of goods and services.

2.  I think it is refers to the market can't efficient allocation of goods and services.

3.  Market failure is refers to the market can't efficient allocation of goods and services.

4.  Market failure is not completely disabling market function but the market can't efficient allocation of goods and services.

5.  Market Failure, is refers to the market can't efficient allocation of goods and services.

6.  Market failure is refers to the market can't efficient allocation of goods and services.

7.  Market failure is refers to the market can't efficient allocation of goods and services.