查询词典 overconfidence

Hybris is overconfidence.

&狂妄自大&就是过于自信或过于自负。

We argue that the only explanations for our findings are overconfidence theories based on biased self-attribution and differences of opinion explanations for high levels of trading activity.

是在写论文时要用到的文章中的一句话，意思好像还挺清楚的，但是红色部分有些障碍，不知道是什么语法结构，特别是 explanations 这个名词怎么做修饰语的啊？希望得到高手帮助和指点，帮忙分析一下句子语法结构和意思。万分感谢！！！

But this is impossible, as long as it is engaging in a market economy, there are risks in any operation.

但是，这是不可能的，只要是搞市场经济，是有风险的任何行动。

We're on the same wavelength.

我们是同道中人。