Annual Conference

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Investment Finance, Senior Fellows/Fellows

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May 2021

The success of behavioral economics has led to a new challenge—many biases offering observationally similar predictions for a targeted financial anomaly. To tame this bias zoo, we combine subjective survey responses with observational data to propose a new approach, one that is robust to question-...
Keywords: excessive trading, survey, gambling preference, overconfidence
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Annual Conference

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Investment Finance

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May 2021

We infer investors' expectations about future stock returns through a measure of short conviction that exploits net short positions disclosed at the investor-stock level for European stock markets. A strategy that sells high-conviction stocks and buys low-conviction stocks, named Best Short, generat...
Keywords: Disclosure, Short-sale performance, anomalies, Hedge Funds.
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Annual Conference

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Investment Finance, Senior Fellows/Fellows

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May 2021

We provide causal evidence on one of the most prominent critiques of behavioral finance – that most of the evidence in psychology, which underpins the field, comes from experiments with little at stake for participants. How far do behavioral biases – leading to investment mistakes – get attenu...
Keywords: Behavioural finance, psychology, behavioural biases, Investment
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Annual Conference

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Investment Finance

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May 2021

The explosion in ESG research has led to a strong reliance on ESG rating providers. We document widespread changes to the historical ratings of a key rating provider, Refinitiv ESG (formerly ASSET4). Depending on whether the original or rewritten data are used, ESG-based classifications of firms int...
Keywords: ESG ratings, ESG investment, CSR
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Annual Conference

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Investment Finance

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May 2021

We explore how mutual funds react when the tradeoff between sustainability and performance becomes salient. Following the introduction of Morningstar’s sustainability ratings (the “globe” ratings), mutual funds increased their holdings of sustainable stocks in order to improve their globe rati...
Keywords: Sustainability, ESG, Mutual Funds, Fund Flows, Ratings
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