Why did Alvard introduce the topic of time discounting in the context of pastoralism? Group of answer choices Pastoralists have a weak understanding of the concept of time, focusing more on the accumulation of cattle for bride price Time for pastoralists has been found to pass more slowly than for agricultural people or foragers Pastoralists must overcome the potential costs of delayed rewards from husbanding animals compared to the immediate returns from hunting them Pastoralists leverage the potential benefits of delayed rewards from husbanding animals by maintaining herds as common pool resources Herders are likely to underestimate the value of future gains in herd size, so frequently will eat more animals than is best