In a globalized and highly-connected world, should we still study countries as individual entities? This question mainly arises in response to introductory macroeconomic textbooks which tend to oversimplify the economic system by initially assuming autarkic countries, i.e. not opened up to trade. Earth Economics offers an original approach to basic macroeconomic concepts by challenging this traditional (introductory) assumption of closed economies. Instead it presents a system comprising one single and ultimate closed economy: the planet Earth. The goal is to make macroeconomics more realistic and to widen the perspective of the discipline. In the author’s words, “Macroeconomics, so to say, studies the bees, eartheconomics studies the beehive”.