This quote essentially means that the market economy, which is the economic system in which decisions regarding investment, production, and distribution are based on supply and demand, does not recognize or abide by political boundaries. Instead, it operates on a global scale, transcending national borders and governments.

The phrase "Its field is the world" implies that the market economy is not confined to a single country or region. It is a worldwide phenomenon, driven by international trade and global competition. This is because businesses in a market economy are typically motivated by profit, seeking to expand their operations and reach as many customers as possible, regardless of where they are located.

In today’s world, this concept is more relevant than ever due to globalization. With the advancement of technology and communication, businesses can now easily operate on an international scale, reaching customers in different parts of the world. This has led to an increasingly interconnected global economy, where events in one country can have significant impacts on others.

For example, a natural disaster in one country can disrupt the global supply chain, affecting businesses and consumers in other countries. Similarly, a financial crisis in one part of the world can spread to others, as seen during the 2008 global financial crisis.

In terms of personal development, this idea suggests the importance of having a global mindset. In a world that is increasingly interconnected, understanding how the global economy works and being aware of international trends and events can be valuable. It can help individuals make more informed decisions, whether it’s about investment, career choices, or even day-to-day purchases. For instance, someone with a global mindset might choose to invest in foreign markets or pursue a career in a field that has high demand globally.

Moreover, this quote also implies that individuals, just like businesses, are not confined by their geographical location. With the rise of remote work and digital nomadism, individuals can now work from anywhere in the world, opening up opportunities for personal and professional growth.