Arguments for globalization:
Globalization helps to diminish poverty. Some countries (in southeast Asia, South America, Africa) before international trade came into place experienced immense poverty, but as they started to be able to trade and sell their products, in other words access new markets, the poverty declined. So many people are now living in better conditions than their parents were a generation ago.
Globalization incentives to keep world in peace and not to get into wars. As every country is interconnected in some way or another, a war only between two of them would have a negative impact on many other countries. Countries have interest in keeping the world peace.
By globalization higher supply of goods and services is created, which keeps the prices lower. Big competition between suppliers pushes prices downward.
According to proponents of globalization free trade is supposed to reduce barriers such as tariffs, value added taxes and subsidies. For example, NAFTA allows members countries to exchange products and services without import and export restrictions.
Manufacturers are now able to export to wider range of countries and to much more wholesalers.
It opened markets for consumers who have now access to markets and products of different countries which were not accessible to them before.
More information exchanged between countries and people also travel more to explore other cultures. This comes with more understanding among each other and we do not perceive people from different countries as aliens.
Labor can now move from country to country, so we can live anywhere in the world we would like to.
Even though globalization can eliminate the poverty, the wealth coming from trade in the poor countries is not distributed equally between all the people, and it can even more deepen wealth differences. In the end poor are becoming poorer, and wealthy are becoming wealthier.
There is also argument that only...