Why is it said world has become one market?

The world is often described as one market due to globalization, which has facilitated the interconnectedness of economies, cultures, and technologies across borders. Advances in communication and transportation have enabled businesses to operate internationally, allowing consumers access to a wider variety of goods and services. Additionally, trade agreements and reduced tariffs have further integrated markets, making it easier for companies to expand globally. This interconnectedness means that economic events in one region can have far-reaching effects on markets worldwide.