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Does Innovation Explain the Skewness of Stock Returns?

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This paper investigates the impact of firm-level innovation on the skewness of stock returns. Using data on a broad sample of equities from the major US stock exchanges, we find that innovative companies exhibit strong positive skewness. Our results are robust to both input and output measures of innovation as we find that increases in both firm-level research and development expenditure (R&D), as well as the number of patents, are positively associated with future stock return skewness. Our results hold using both systematic and idiosyncratic measures of skewness while controlling for various stock characteristics, time, and industry-fixed effects.

University of New Haven - College of Business

Ahmed Baig Hassan Anjum Butt Abrar Fitwi Joey Smith

American Business Review

Title: Does Innovation Explain the Skewness of Stock Returns?

Description:

This paper investigates the impact of firm-level innovation on the skewness of stock returns.

Using data on a broad sample of equities from the major US stock exchanges, we find that innovative companies exhibit strong positive skewness.

Our results are robust to both input and output measures of innovation as we find that increases in both firm-level research and development expenditure (R&D), as well as the number of patents, are positively associated with future stock return skewness.

Our results hold using both systematic and idiosyncratic measures of skewness while controlling for various stock characteristics, time, and industry-fixed effects.

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