In my opinion, the positive side of immigration is bigger than the negative side of it. Even though sometimes a few migrants make some trouble get into troubles in our country, most of them contribute to economic growth of our country. For example, youth generation tends not to do physical labor. Moreover ,there is rapid decrease in population which bring about severe reduction in domestic market. As a result of these things, corporation couldn't find workers as well as couldn't sell their products. But, when we accept immigration from other countries, we can solve these problems.