Final answer:
Communication costs have decreased, benefiting globalization and reducing skill barriers in digital communications.
Explanation:
The cost of communication has decreased over time, leading to a decrease in trade barriers and an increase in globalization.
The modern communications revolution, driven by lower costs and new technologies, has significantly sped up globalization by integrating national markets.
Improved digital communications lower the skills required to communicate, benefiting individuals with learning difficulties or limited access to education.
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