Final answer:
A signal of progress in business negotiations with foreigners includes the reduction of trade barriers, the establishment of international agreements, and increased awareness of global products and services.
Step-by-step explanation:
A signal of progress that American negotiators would consider when conducting business negotiations with foreigners is the reduction of trade barriers. This could include reductions in tariffs, quotas, and other barriers that make it easier for goods and services to flow between countries.
Another signal of progress could be the establishment of international agreements. These agreements can serve as a political counterweight to domestic special interests and prevent stronger protectionist measures.
Lastly, American negotiators may view increased awareness of what is available in the rest of the world as a signal of progress. This can be achieved through improved transportation and communication media, which make people more aware of global products and services.