Kenneth Arrow
A Nobel laureate famous for his impossibility theorem, demonstrating the difficulties of aggregating individual preferences into a consistent social choice.
Quotes by Kenneth Arrow
No social welfare function can simultaneously satisfy the conditions of unrestricted domain, Pareto efficiency, and independence of irrelevant alternatives.
The Arrow Impossibility Theorem shows that any attempt to aggregate individual preferences into a collective choice will run into paradoxes.
Economics is about choice under scarcity, but in social choices, the scarcity is in consensus.
Uncertainty is not the same as risk; the former cannot be quantified in probabilities.
In a competitive market, information asymmetry leads to market failure.
The health care market is characterized by substantial market imperfections.
Equity and efficiency are not always at odds; sometimes they reinforce each other.
The impossibility theorem teaches us humility in designing democratic institutions.
General equilibrium theory assumes too much; reality is messier.
Innovation is the child of uncertainty, not of certainty.
In economics, as in life, what we don't know can hurt us more than what we do.
Social choice is the art of the impossible made possible through compromise.
Markets are powerful, but they need guardrails to prevent collapse.
The paradox of voting reveals the fragility of democracy.
Risk aversion is a fundamental human trait that shapes economic behavior.
Welfare economics must account for externalities, or it fails.
In the end, economics is about improving human welfare, not just numbers.
The second-best theorem: if one market fails, don't assume the rest are perfect.
Information is the currency of modern economies, and its distribution is uneven.
Democracy's strength lies in its ability to aggregate diverse opinions, despite impossibilities.