ESG performance, herding behavior and stock market returns: evidence from Europe

Nektarios Gavrilakis () and Christos Floros
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Nektarios Gavrilakis: Hellenic Mediterranean University

Operational Research, 2023, vol. 23, issue 1, No 3, 21 pages

Abstract: Abstract This paper tests how financial performance indicators and combined ESG score for large-cap stocks impact on stock return. In particular, we examine how market capitalization, price to book value, Sharpe ratio and ESG score of large-cap firms in Europe are related to their stock performance. We consider a panel data consisting of six European countries—Portugal, Italy, Greece, Spain, France and Germany—for the period 2010–2020. For Greek and French firms, a firm’s size tends to negatively affect its stock returns. The investors in European countries (except Italy) do not jeopardize their returns by investing in highly ESG scoring firms. We argue that the benefit of not investing in highly ESG-scoring firms might lead investors to select smaller size companies with a higher price to book value and higher Sharpe ratio, as it is more likely to generate higher returns. Moreover, Italian firms are more susceptible to ESG issues, as ESG performance and stock return seem to have a significant negative correlation. This valuable result was confirmed by conducting a robustness test for Europe as a whole using the Euronext100 index. Finally, we find no evidence that ESG motivates herding in our selected sample (this is not the case for Greece and France), while we report evidence of ESG herding behavior during the Covid-19 outbreak in Portugal, Italy and Greece.

Keywords: ESG performance; Herding behavior; Market capitalization; Price to book value ratio; Sharpe ratio; Europe (search for similar items in EconPapers)
Date: 2023
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DOI: 10.1007/s12351-023-00745-1

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