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What is herd behavior?

admin2021-03-19  13
问题 What is herd behavior?
Herd behavior is evident when people do what others are doing instead of using their own information or making independent decisions and it is particularly relevant in the domain of finance, where it has been discussed in relation to the collective irrationality of investors, including stock market bubbles.
选项 A、Individuals in a group acting collectively without centralized direction.
B、People making independent decisions regardless of what others are doing.
C、People sharing information and collectively making decisions.
D、Investors acting with collective irrationality.
答案A
解析 概念词义辨析题。本段论述结构为先总述后举例，总体论述“herd behavior” （羊群效应)这一概念的关键部分为“people do what others are doing instead of using their own information or making independent decisions”，即别人在做什么自己就做什么，而不利用自己获取的信息进行判断或独立做决定。此后的“it is particularly…”是在说明经济领域该现象的显著情况。题干中“What is herd behavior”，所问为这个概念的含义，选项D是一个实例，但没有涵盖这个概念的全部意义，因此不切题。选项B所述为不顾别人在做什么，自己独立做决定，与原文意思相反。选项C所述为群体间共享信息并共同决策，与羊群效应有一定相似性， 但不完全相同，该选项论述的是群体对信息和决策共同处理的这样一种存在方式，而羊群效应侧重的是群体中的个人没有主见，盲目从众，故该选项错误。因此，本题答案为选项A。
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