Introduction to Macroeconomics Notes

H2 Economics Chapter 5 and 6 Notes This document is intended as a summary of the points provided in the NJC 2024 H2 Economics Chapter 5 and Chapter 6 Seminar Notes. It is to be used as a study guide to provide a structure for studying the Chapter 5 and Chapter 6 Notes. 1 The Circular Flow of Income The Four Sector Economy is a model of a country’s domestic economy. It is the basis of all Macroeconomics. It consists of four sectors, and one intermediary, each of which play a very important role in the economy: Households buy goods and services as they want to maximise their satisfaction. They also provide resources like labour, land, capital and entrepreneurship to firms. Firms produce goods and services using resources provided by households, and sell them as they want to maximise their profits. The Government taxes households and hires firms to produce public goods and services as they want to maximise societal welfare. The Foreign Sector trades with the domestic economy by buying exports and selling imports. The Bank collects savings from households and funds investments by firms. In the Four Sector Economy, it is important to understand that there is a movement of money between sectors ( money flow ) and a movement of goods and services between sectors ( real flow ). This is explained using Eli’s Story of Macroeconomics. Eli’s Story of Macroeconomics (4-Sector Economy) In 2024, country X’s economy functions as it always has. firms produce goods and services and sell them in order to maximise their profits. In order to do so, they make factor payments to households to hire resources. Afterwards, households receive this money as factor income. Using a large part of the income households have received, they spend on goods and services produced by firms in order to maximise their satisfaction. The goods and services purchased may be domestically produced or imported from the foreign sector. The remaining income that households have is either saved in the bank or paid to the government as taxes (Households do receive subsidies from the government, but generally, they are taxed more than they are subsidised). 1

NJC H2 Economics 2024 Chapter 5/Chapter 6 The bank uses most of the savings of households to fund firms’ investments in productive assets (machinery, which, when built, can produce goods and services in the future). The government uses most of