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Glossary · Ethics

Effective Altruism

A philosophy using evidence and reason to maximize positive impact in charitable giving and career choices.

Definition

What 'Effective Altruism' means

Effective altruism (EA) is a movement and ethical framework that applies evidence and reasoning to determine the most effective ways to improve the world. Followers prioritize causes based on scale, tractability, and neglectedness, often focusing on global health, animal welfare, and existential risk reduction. EA has influenced philanthropic giving, with organizations like GiveWell and the Open Philanthropy Project directing funds to high-impact interventions.

In depth

The longer answer

Effective altruism is a philosophical and practical movement that uses evidence and reasoning to determine the most effective ways to help others. It asks individuals to consider not just whether they are doing good, but how much good they are doing per unit of resource, such as time or money. One encounters this concept in discussions about charitable giving, career choices, and global priorities, often within communities focused on reducing suffering and promoting well-being.

In practice, effective altruism involves applying cost-effectiveness analysis to charitable interventions, much like a business evaluates investments. For example, organizations like GiveWell rigorously compare charities based on metrics like lives saved per dollar. In the context of food systems, effective altruists often prioritize interventions that reduce farmed animal suffering, such as advocating for corporate cage-free commitments or funding plant-based alternatives, because these actions can prevent immense suffering at a relatively low cost.

For someone eating or shopping, effective altruism matters because it encourages a thoughtful approach to how their choices—like donating to a highly effective animal welfare charity versus a less efficient one—can maximize positive impact. However, a limitation is that it can feel impersonal or overly calculative, potentially overlooking emotional or systemic factors. It also requires careful scrutiny of evidence, which may not always be straightforward or complete.

At a glance

Quick facts

Quick facts — Effective Altruism
DetailWhat to know
Core principleMaximizing good per resource
Key methodCost-effectiveness analysis
Common focusGlobal poverty and animal welfare
Typical critiqueOverly utilitarian or data-driven

In practice

What this means for you

  • When donating, research charities using independent evaluators like GiveWell or Animal Charity Evaluators to ensure high impact per dollar.
  • Consider career paths that allow you to earn to give or directly work on high-priority problems like factory farming.
  • Apply the 'expected value' lens: prioritize actions with the highest probable good, even if outcomes are uncertain.
  • Discuss trade-offs openly with others, acknowledging that effective altruism is one framework among many for ethical living.

FAQ

Common questions

Does effective altruism only care about numbers?
No, but it emphasizes using data to compare interventions. It doesn't dismiss emotions or values; rather, it seeks to align them with evidence to avoid wasting resources on less effective efforts.
How can I apply effective altruism to my daily diet?
You can reduce animal suffering by choosing plant-based options, as this is a high-impact, low-cost change. Donating to effective farmed animal charities amplifies this impact further.
Is effective altruism just for rich people?
Not at all. Anyone can practice it by donating even small amounts to highly effective causes, or by making career and lifestyle choices that prioritize helping others efficiently.