Final answer:
The e-commerce dimension that allows for international transactions is called global reach, exemplified by multinational companies and supported by advancements in technology and logistics.
Step-by-step explanation:
The dimension of e-commerce that enables commerce across national boundaries is known as global reach. This term describes the ability of businesses to market, sell, and operate on an international scale, unlike traditional commerce which is often limited by physical and political boundaries. With the advent of the internet and advancements in global logistics, e-commerce platforms can easily connect sellers and buyers from different parts of the world, thereby fostering international trade and creating a globally interconnected market.
An example of this global reach can be seen with international franchises like McDonald's, which have adopted the concept of globalization, making their products and services available in almost every country. Furthermore, globalization is not only about the worldwide distribution of goods but also encompasses the interconnectedness of societies and economies due to trade, technology, and cultural exchange.