1. He had an excess income from his part time job.

2. Based on the cost method of reserves value calculation, the paper puts forward the value evaluation model of natural gas reserves(excess income general model)for the first time.

3. Based on cost method of calculating reserves value, this paper puts forward value evaluating model of natural gas reserves(excess income general model)for the first time.

4. The excess income difference has been an impediment to society and economic development, which tampers with the society justness and stabilization.

5. Unable sales income will be smaller, the excess income relative to complete more.

6. Taking advantage of people's eagerness to invest with a view of obtaining "excess income", criminals committed fraudulent fund-raising crime, which brings heavy negative effect to the society.

7. The results of the research indicate: as a whole, the ability of the closed-end funds gaining market excess income is minus, and it's statistically significant.