一段英语。最后一句话的句子结构没有看懂。问题是people do做什么成分呢？谢谢

Question

Given how patent the shortcomings of the standard economic model are in its portrayal of human behavior, the failure of many economists to respond to them is astonishing. They continue to fill the journals with yet more proofs of yet more improbable theorems. Others, by contrast, accept the criticisms as a challenge, seeking to expand the basic model to embrace a wider range of things people do.
后来又仔细想一下。觉得people do 应该还是后置定语吧。应该是重复前面的human behavior. 。。为什么没人回答呢。。。

Answer 1

people do 是后置定语，但从语法上看，是修饰隔壁的a wider range of things。
“努力扩大基础（经济）模式，以便将更多的人类（经济）行为纳入范畴”