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首页> 外文期刊>Journal of financial economics >Why does junior put all his eggs in one basket? A potential rational explanation for holding concentrated portfolios
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Why does junior put all his eggs in one basket? A potential rational explanation for holding concentrated portfolios

机译:为何小三把所有的鸡蛋都放在一个篮子里?持有集中投资组合的潜在理性解释

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摘要

Empirical studies of household portfolios show that young households, with little financial wealth, hold underdiversified portfolios that are concentrated in a small number of assets, a fact often attributed to behavioral biases. We present a potential rational alternative: we show that investors with little financial wealth, who receive labor income, rationally limit the number of assets they invest in when faced with financial constraints such as margin requirements and restrictions on borrowing. We provide theoretical and numerical support for our results and identify the ratio of financial wealth to labor income as a useful control variable for household portfolio studies.
机译:家庭资产组合的实证研究表明,金融财富很少的年轻家庭持有的资产组合不足,而这些资产组合集中于少量资产,这一事实通常归因于行为偏见。我们提出了一种潜在的理性选择:我们证明,在面对金融约束(例如,保证金要求和借款限制)的情况下,获得劳动收入的金融资产很少的投资者会合理地限制他们投资的资产数量。我们为研究结果提供理论和数值支持,并将金融财富与劳动收入之比确定为家庭投资组合研究的有用控制变量。

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