In this thesis, I analyze the book One World Now by Peter Singer, in order to answer the question “Which ethical approach should we pursue in our globalized society?”. Throughout this paper, I support that utilitarian ethics is the best approach to address issues of globalization, specifically when implemented by businesses and corporations. I address that given the higher level of resources and structure, businesses are both more capable and morally obliged than individuals to increase global utility and maintain a consistent utilitarian decision-making process. Finally, I argue how businesses are less likely to substantiate criticisms against utilitarian ethics.