Fundamentals of MacroeconomicsStudent NameInstructorCourseDateIntroductionMacroeconomics is the field of economics that studies the behavior of the aggregate economy. Macroeconomics examines economic-wide phenomena which includes changes in national income, unemployment, growth rate, inflation, and gross domestic product and price levels. This paper analyses the various instances of macroeconomics as experienced around the world. It also discusses how purchasing grocery, employee layoffs and decrease in taxes make an influence to the economy. Purchasing groceriesPurchasing of groceries, in regards to the current global economic systems, is impacted by several components. Every nation, when it comes to international trade, possesses a comparative advantage. Therefore, this makes it more efficient to purchase grocery products across the world. Each person, in order to survive, has to make a purchase to the groceries and this makes a huge influence to the economy. In government, when people make more purchase to the groceries, the government collects more tax dollar. Nevertheless, when there is a rise in prices as people begin cutting back on groceries, this leads to low tax collection for the government. This brings about the implication that, if individuals cut back on food for the reason that lie under