Evidence for Reciprocal Altruism

question 51

Multiple Choice

Evidence for reciprocal altruism

• A) is absent among primates because they cannot recognize kin.
• B) is absent among primates because they do not have long-term memories.
• C) exists among primates because they often live in stable social groups.
• D) exists among primates because of their longevity.

---

Definitions:

Marginal Tax Rates

The rate at which the last dollar of a taxpayer's income is taxed, indicating the rate applied to each additional dollar of income.

Capital Gains

The profit realized from the sale of assets, such as stocks or real estate, that have increased in value over their purchase price.

Investment Expenditures

Investment expenditures refer to the spending on capital goods by firms that are intended to improve future production or purchases made by individuals in financial instruments or capital assets.

Supply-Siders

Economic theorists who believe that lower taxes, decreased regulation, and a reduced role of government in the economy will lead to increased production and supply, driving economic growth.