The act of comparison is used frequently in many aspects of life and can inform us when making decisions, it can be useful in relatively serious scenarios such as whether to leave one job for another or less urgent matters such as which type of apples to buy. Comparative qualities are also present in the world of politics, these qualities can help answer questions about why things are the way they are in society and subsequently what can be done to maintain or change them, this could be deciding which political party in the Kingdom Kingdom is suited to a person's needs or whether the North of England receives its fair share of resources when considered alongside the South of England. While these examples provide a comparative approach within the UK, cross-national comparison is also a tool that can be used to collect data from multiple countries. This essay will examine the extent to which it is useful and relevant to make comparisons between nations rather than a specific country of interest, it will aim to uncover the advantages and disadvantages of doing so through empirical examples of how different states, systems and systems elements that contribute to the management of a country they work. Comparing means weighing the similarities and differences of at least two things, comparing something with itself would not produce new information and therefore would be a waste of time. In the political world this could mean comparing, for example, two or more governments, regimes, economic models or the political participation of its citizens, meaning you can compare different elements of a country but not a country with itself, at least not from the same time period perspective. Political comparatists look for equivalencies and models that aim to ferret out the most relevant variable... at the heart of the document... w for greater levels of prediction of future outcomes, which can provide valuable information in either promoting or avoiding similar scenarios. The comparative approach allows us to test hypotheses in practical and ethical terms that would otherwise be difficult and could cause a stir if tested on individual countries. It too has drawbacks in terms of selection bias and contextual understanding of how different countries work, but these can be remedied and whilst it is not a perfect approach as people can upset any hypothesis, it is still of great value. value and useful. A general but no less valuable reason for making comparisons between various nations may be to broaden a researcher's horizons. Learning about different cultures and people can expand a person's knowledge from a narrower perspective, as would be the case if they only studied one country.