Briefly Explain the Objective Factors of Consumption Function
In economics, the consumption function describes the relationship between consumption expenditure and disposable income. While disposable income is the primary determinant, John Maynard Keynes, and subsequent economists, identified several other factors that objectively influence a community’s (or an individual’s) propensity to consume. These “objective factors” are external, measurable, and can cause shifts in the entire consumption function, meaning that at any given level of income, the amount consumed changes.
Here are some of the key objective factors:
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Changes in the Price Level (Real Income):
- Explanation: When the general price level in an economy changes, it affects the purchasing power of money, and thus, the real income of individuals. If prices fall, real income effectively increases, allowing people to buy more goods and services with the same nominal income, leading to higher consumption. Conversely, rising prices reduce real income, leading to lower consumption.
- Impact: A fall in the price level shifts the consumption function upward, and a rise in the price level shifts it downward.
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Changes in the Wage Level:
- Explanation: A general increase in wage levels across the economy raises the income of workers. This directly translates to higher disposable income, which in turn leads to increased consumption.
- Impact: A rise in wages will generally shift the consumption function upward.
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Changes in the Rate of Interest:
- Explanation: The interest rate influences both saving and borrowing decisions. A higher interest rate might encourage saving (as the return on savings is higher) and discourage
In economics, the consumption function describes the relationship between consumption expenditure and disposable income. While disposable income is the primary determinant, John Maynard Keynes, and subsequent economists, identified several other factors that objectively influence a community’s (or an individual’s) propensity to consume. These “objective factors” are external, measurable, and can cause shifts in the entire consumption function, meaning that at any given level of income, the amount consumed changes.
Here are some of the key objective factors:
-
Changes in the Price Level (Real Income):
- Explanation: When the general price level in an economy changes, it affects the purchasing power of money, and thus, the real income of individuals. If prices fall, real income effectively increases, allowing people to buy more goods and services with the same nominal income, leading to higher consumption. Conversely, rising prices reduce real income, leading to lower consumption.
- Impact: A fall in the price level shifts the consumption function upward, and a rise in the price level shifts it downward.
-
Changes in the Wage Level:
- Explanation: A general increase in wage levels across the economy raises the income of workers. This directly translates to higher disposable income, which in turn leads to increased consumption.
- Impact: A rise in wages will generally shift the consumption function upward.
-
Changes in the Rate of Interest:
- Explanation: The interest rate influences both saving and borrowing decisions. A higher interest rate might encourage saving (as the return on savings is higher) and discourage