1. The transportation cost is higher than the donation value, so it is more cost-effective to destroy it than to send it out;

2. Economic crisis means that the economic system does not generate enough consumption value, that is, there is excess production capacity crisis. But the overproduction here is relative, that is, a kind of overcapacity relative to the actual demand capacity.

3. Economic crises sometimes occur with regularity. When the maximum land output cannot meet the growing demand and when the maximum market demand cannot meet the production capacity, economic crises will occur.

4. Stalin has a famous saying: "If an economic system does not know how to deal with the 'excess' products it produces, and when the masses are generally suffering from poverty, unemployment, hunger and bankruptcy But they have to be burned, then this economic system itself has sentenced itself to death." The meaning behind it is that private ownership, that is, the capitalist system, has caused this phenomenon to occur. Due to the privatization of capitalist means of production, the capitalists who control the means of production are only one part of the entire capitalist economy. When there is overproduction, those who do not control the means of production will lose their financial resources and job opportunities.