Why does the distribution of costs and benefits from trade sometimes result in calls for trade restrictions?

Question

Quizplus · Accepted Answer

The Answer is The gains from trade tend to be widely dispersed and some of the benefits, such as greater efficiency, only accrue in the long run. In contrast the costs of trade (such as domestic jobs lost) tend to be short run and relatively concentrated. This often results in those hurt by trade calling for restrictions.

Why Does the Distribution of Costs and Benefits from Trade