U. s. membership in the world trade organization has had which of these effects?
it has resulted in a steady growth in international trade. it has reversed the decades-long trend towards outsourcing. it has made the u. s. economy more vulnerable to recessions. it has made a significant contribution to the u. s. national debt

U.S. membership in the World Trade Organization had this effect:

It has resulted in a steady growth in international trade.

A downside of this is that the trend toward outsourcing is gaining ground. Companies prefer to outsource labor because cost of outsourced labor is cheaper than domestic labor. This is good for the companies because their costs decrease. However, domestic employees are becoming jobless. They find it hard to compete with foreign laborers. Thus unemployment rate increases.