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Risk-return trade-off and serial correlation: Do volume and volatility matter?

Jyri Kinnunen

Journal of Financial Markets, 2014, vol. 20, issue C, 1-19

Abstract: I investigate a relation between the conditional mean and variance of the aggregate stock return using a model that allows the relevance of the risk-return trade-off and autocorrelation to change over time. The model detects a positive risk-return relation, but the importance of the risk-return relation fluctuates with the level of information flow, measured by volatility. During low-volatility periods, market-wide persistence in returns increases, leading to a failure of the pure risk-return explanation for expected returns. This offers an explanation as to why detection of a positive risk-return trade-off has been challenging, while autocorrelation has been a robust finding.

Keywords: ICAPM; Risk-return trade-off; Volume; Volatility; Autocorrelation (search for similar items in EconPapers)
JEL-codes: G12 (search for similar items in EconPapers)
Date: 2014
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DOI: 10.1016/j.finmar.2014.04.003

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Journal of Financial Markets is currently edited by B. Lehmann, D. Seppi and A. Subrahmanyam

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