NO.PZ2022052301000006
问题如下:
Over the next week, Owen and Yang are scheduled to meet with Fillman Associates, Philly’s largest institutional client. Owen mentions that Fillman is more sophisticated than Philly’s typical client. To prepare for the meeting Yang reviews several of Fillman’s annual due diligence forms completed by Owen. One question in particular catches her attention: it asked how the firm’s equity portfolios performed during the 2005–2007 residential property boom and how the equity turnover rates varied from previous years when the markets were more efficient. In part, the response read, “During the residential property boom of 2005–2007 equity trading activity was significantly higher than previous years when the markets were more efficient. Our trading expertise allowed us to consistently harvest profits.”
What behavioral bias is most likely indicated by Philly’s equity turnover rates during the 2005–2007 residential boom?
选项:
A.Herding
Overconfidence
Recency effect
解释:
Philly’s increased trading activity is indicative of overconfidence. In bubbles investors often exhibit symptoms of overconfidence; overtrading, under-estimation of risks, failure to diversify, and rejection of contradictory information. With overconfidence, investors are more active and trading volume increases, thus lowering their expected profits. Overconfidence and excessive trading are linked to confirmation bias and self-attribution bias as well as hindsight bias and the illusion of knowledge.
2005-2007 residential property boom = bubbles
在bubbles下分为rational bias和behavioral bias,其中题目问的behavioral bias包含以下:
anchoring
confirmation
disposition effect
hindsight bias
illusion of knowledge
overconfidence
regret aversion
self-attribution
因此,根据排除法,选择B overconfidence