Globalization is a concept of a complex process that affects most areas of human life. These changes are both subjective and objective and, as the name implies, they are not limited to specific areas but extend around the world, increasing the flow of information, products, resources, people and ideas across borders.
There have been major changes in the field of information technology with the spread of digital technology. Thus, the advent of the Internet, more powerful computers and mobile phones has improved and enhanced people's communication. Today, the public can communicate with each other around the world in real time in a relatively inexpensive way. There have also been improvements in the field of transport that facilitate long-distance travel. Distance therefore means less restrictions on people's ability to travel and communicate. It is becoming increasingly common for tourists to travel between countries for entertainment. Culturally, individualism is more prevalent as the prevailing ideology, and people increasingly define themselves by their way of life or lifestyle. Globalization has in some places led to a more homogenous culture in different countries.
A core-periphery relationship is is defined by the exploitation of the periphery countries by the core countries. The last one is the only one that shows some type of exploitation. I hope this helps.
