The life-cycle hypothesis (LCH) is an economic theory that explains how people manage their spending and saving throughout their lives.
According to this theory, individuals aim to balance their consumption over their lifetime by borrowing during periods of low income and saving during times of high income.
This idea was introduced by economists Franco Modigliani and his student Richard Brumberg back in the early 1950s.
Understanding the Life-Cycle Hypothesis
The LCH suggests that people budget their expenses throughout their lives, considering their expected future earnings.
As a result, they might incur debt in their younger years, believing that their future income will allow them to repay it. Then, during their middle age, they save money to keep their consumption steady when they retire.
Therefore, a graph depicting a person’s spending over time reveals a hump-shaped curve, where wealth growth is minimal in youth and old age but peaks during middle age.
The Example
A solid illustration of the LCH theory in action is putting money aside for retirement. Throughout your career, you stash away cash for the time when you won’t be working anymore, understanding that you might not have a paycheck as you age.
Who Wrote the Life-Cycle Hypothesis Theory?
In the early 1950s, economists Franco Modigliani and his student Richard Brumberg came up with the Life Cycle Hypothesis (LCH).
Conclusion
The life-cycle hypothesis, which was created in the 1950s, suggests that individuals generally keep a steady spending level throughout their lives.
There have been criticisms aimed at the LCH. One major point is that people don’t always stick to a consistent consumption pattern. For example, a middle-aged person with a family of four and a mortgage is likely to spend more than when they retire, have no dependents, and own their home.
Despite this, the LCH remains a significant aspect of contemporary economic theory.