Final answer:
The lobbyist is utilizing the Unfair-competition argument to advocate for increased trade restrictions on imported microprocessors, stating that foreign subsidies to exporters create a competitive disadvantage for domestic producers.
Step-by-step explanation:
The lobbyist advocating for trade restrictions on imported microprocessors is using the Unfair-competition argument. This argument suggests that domestic producers are at a disadvantage because producers in other countries allegedly receive subsidies for exporting microprocessors. It is contended that these subsidies enable foreign competitors to offer lower prices or higher quality, which undercuts domestic businesses in the international marketplace.
While other arguments exist for restricting trade, such as the infant-industry argument (to help new industries establish themselves) or the national-security argument (to avoid dependence on key imports that might be cut off), in this scenario, the focus is on combating what domestic producers perceive as unfair trade practices due to foreign subsidies.
Trade policy is influenced by various factors and levels of government, including international treaties through the World Trade Organization, which generally advocate for reducing trade barriers. However, domestic special interests can still influence policy to protect their own industries.