请帮我分析一下此句的结构

Question

In the American economy, this mechanism is provided by a price system, a process in which prices rise and fall in response to relative demands of consumers and supplies offered by seller-producers.

Answer 1

在美国经济中，这个机制被价格系统所证明了，这是这样一个过程：价格的升降随着买方的需求与供方的供给之间的相对关系而改变。
a pricess in which后面是定语从句，price rise and fall in response to ralative+of 后面是具体说明这个关系。。

Answer 2

In the American economy;状语 this mechanism is provided by a price system主句, a process 同位语in which prices rise and fall in response to relative demands of consumers and supplies offered by seller-producers.定语从句本回答被提问者采纳