Based on the assumption that individuals seek to maximize the return (in calories and nutrients) on their labor, age and gender is a model used by anthropologists to how food collectors decide which animals and plants to hunt or collect and which to ignore.
In its most basic sense, the term "labor" refers to employment that requires heavy manual labor, typically performed by unskilled laborers. However, the term "labor" in economics refers to manual labor. It also requires mental effort. In other words, work that is done physically or mentally in exchange for payment is considered labor.
When it comes to human origins, physical, social, linguistic, and cultural development, behavior, and the cultures, organizations, and institutions that people have built over time, anthropologists study, assess, and help shape public policy.
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