Fluctuations in national income:
Question
Fluctuations in national income:
Solution
Fluctuations in national income refer to the periodic rises and falls in the level of economic activity in a country, measured by the gross domestic product (GDP). These fluctuations are also known as business cycles and can be broken down into four stages: expansion, peak, contraction, and trough.
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Expansion: This is a period of economic growth where national income, employment, and production are increasing. Businesses are expanding, unemployment is low, and consumers are spending more.
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Peak: This is the highest point of an economic expansion, where the growth of national income slows down. It's the point at which an expansion transitions into a contraction.
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Contraction: This is a period of economic decline where national income, employment, and production are decreasing. Businesses are contracting, unemployment is rising, and consumers are spending less.
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Trough: This is the lowest point of an economic contraction, where the decline of national income slows down. It's the point at which a contraction transitions into an expansion.
These fluctuations in national income can be caused by various factors, including changes in investment, government spending, exports, imports, and consumer spending. They can also be influenced by external factors such as global economic conditions and geopolitical events.
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We have discussed in class the concept of economic stability and economic fluctuations.The table below shows the changes in percentage points of the components of expenditure contributing to US GDP growth. The data is for the year 2009, during the height of the Great Recession caused by the global financial crisis. For instance, the second cell labelled "GDP" implies that GDP declined by 2.8 percentage points in 2009 relative to 2008: YearGDPConsumptionInvestmentGovernment spendingNet exports2009−2.8−1.06−3.520.641.14 a) With reference to the role played by households, business and government in explaining the magnitude of economic fluctuations, can you try to highlight the main economic insights that can be learn from this table? [10 points]b) In any economy, a crucial factor for stability is the desire of households to maintain a steady level of consumption of goods and services over time, which is known as "consumption smoothing". But when faced with income shocks, this tendency can be hindered by various factors which we have extensively covered in class. Can you please elaborate on these factors and give examples of how they limit households' ability to smooth their consumption? [10 points]View keyboard shortcutsEditViewInsertFormatToolsTable12ptParagraph
A fluctuation in aggregate variable such as income and output is known as ______
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