Answer: lower barriers to trade
Step-by-step explanation:
Barriers to trade are usually used by countries to protect their infant industries, prevent dumping and consumption of harmful goods.
Despite all the controversies with international trade, the trend for the last 60 years has been toward a lower barrier to trade and there has been tremendous improvement with regards to that as the average level of tariffs that were charged by the industrialized countries was about forty percent in 1946 but reduced to about five percent in 1990. Also several countries have minimized their trade barriers.