The first reason is that this world economic imbalance can lead to many global problems. As you may know, many problems result from the difference in economic conditions. Hardship and hunger prompt people to begin doing illegal activities. For example, in Somalia, one of the poorest countries of the world, the Somalian citizens have begun to turn themselves into pirates and attacking the commercial ships which come nearby. They claim that they are better off by being thieves. This is a big obstacle to world trade activities. Thus, to make them have a sufficient resource to live their daily lives without being pirates, I believe that sharing is one of the possible solutions to reduce such problems.
Moreover, while sharing parts of the resource might cost a little to one country, it might help a great number of people in another country. Consider this simple example: as we know, the value of one currency differs from that of other currencies, so, the cost of one particular meal in one country could differ from another country. To contrast, one comparable lunch-meal in Thailand might cost $1 per person, while it might costs $5 in USA. Thus, sharing parts of wealthy country’s resources can help a lot more people than we expected, and not cost too much
However, the governments of the poorer nations should mainly take the responsibility to look after their people. They should find ways to improve their economic well-being, as well as the standard of living of the citizens. They should not expect to be given