What are the two categories of international investment? Make a brief explanation on them.

比较优势并不是一个静止的概念，一个国家可以通过自己的行动发展某种特定的比较优势。

其实低收入地区的经济繁荣也会给发达国家带来好处，因为这样他们对这些地区的出口就会增加。

回购贸易和互购贸易之间的重要区别之：在于回购贸易一般比互购贸易要延续更长一段时间。

如果投保的险别不是造成损失的直接原因，保险公司将不予赔偿.

要评估某一市场的潜力，人们往往要分析其收入水平，因为它为那里居民的购买力高低提供线索。

The highest form of economic integration is called the economic union which is characterized by integration of the domestic policies of its members in respect of economy,finance,etc. in addition to absence of trade barriers,practice of common external policy and free production factor mobility. The members of an economic union are required not only to harmonize their taxation, government expenditures. Industry policies,etc. but also use the same currency.

What is the quota of the International Monetary Fund? Is it important? Why?

In documentary collection, the exporter sends the draft and the shipping documents representing title to the goods to his bank, which forwards them to another bank in the importer's country. which in turn contacts the customer. In the case of D/P, the documents will not be released to the importer until payment is effected, In case of D/A. documents are handed over to the importer upon his acceptance of the draft drawn by the exporter.

Can you summarize briefly the factors that have caused the changes in the transportation industry?

Why is it necessary to have Incoterms?