Step 1: Understanding Consumption Function.
Consumption function refers to the relationship between total consumption and total income. It indicates the amount of consumption that occurs at different levels of income. The consumption function typically has the form:
\[
C = C_0 + C_1 Y
\]
where \( C \) is total consumption, \( C_0 \) is autonomous consumption (consumption when income is zero), \( C_1 \) is the marginal propensity to consume (MPC), and \( Y \) is total income.
Step 2: Conclusion.
The consumption function is an essential concept in economics that helps understand how consumption behavior changes with income.