Why is economic power the most crucial determinant of a global city?

Economic power is the ability of countries, businesses, or individuals to improve their standard of living. Countries, companies, and individuals can acquire economic power by improving their income, thereby adding to their wealth. That allows them to purchase more and better goods and services to meet their needs.

To provide the Wellcomb family's backstory

Explanation:

The passage is just giving a short paragraph of what went on in their life. ( A Back story )