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Publications

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  • All HBS Web  (16)
    • Faculty Publications  (5)

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    • All HBS Web  (16)
      • Faculty Publications  (5)

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      • 2022
      • Working Paper

      The Evolution of ESG Reports and the Role of Voluntary Standards

      By: Ethan Rouen, Kunal Sachdeva and Aaron Yoon
      We examine the evolution of ESG reports of S&P 500 firms from 2010 to 2021. The percentage of firms releasing these voluntary disclosures increased from 35% to 86% during this period, although the length of these documents experienced more modest growth. Using a...  View Details
      Keywords: Voluntary Disclosure; Textual Analysis; Modeling And Analysis; Corporate Social Responsibility and Impact; AI and Machine Learning; Accounting
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      Rouen, Ethan, Kunal Sachdeva, and Aaron Yoon. "The Evolution of ESG Reports and the Role of Voluntary Standards." Harvard Business School Working Paper, No. 23-024, October 2022.
      • 2021
      • Working Paper

      The Diffusion of Disruptive Technologies

      By: Aakash Kalyani, Nicholas Bloom, Tarek A. Hassan, Josh Lerner, Marcela Carvalho Ferreira de Mello and Ahmed Tahoun
      We identify novel technologies using textual analysis of patents, job postings, and earnings calls. Our approach enables us to identify and document the diffusion of 29 disruptive technologies across firms and labor markets in the U.S. Five stylized facts emerge from...  View Details
      Keywords: Technology; Geography; Innovation; R&D; Information Technology; Disruptive Innovation; Geographic Location; Employment; Innovation and Invention; Research and Development
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      Kalyani, Aakash, Nicholas Bloom, Tarek A. Hassan, Josh Lerner, Marcela Carvalho Ferreira de Mello, and Ahmed Tahoun. "The Diffusion of Disruptive Technologies." Harvard Business School Working Paper, No. 21-144, June 2021.
      • Article

      Machine Learning Approaches to Facial and Text Analysis: Discovering CEO Oral Communication Styles

      By: Prithwiraj Choudhury, Dan Wang, Natalie A. Carlson and Tarun Khanna
      We demonstrate how a novel synthesis of three methods—(1) unsupervised topic modeling of text data to generate new measures of textual variance, (2) sentiment analysis of text data, and (3) supervised ML coding of facial images with a cutting-edge convolutional neural...  View Details
      Keywords: CEOs; Communication Style; Machine Learning; Spoken Communication; Nonverbal Communication; Personal Characteristics; Analysis; Performance
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      Choudhury, Prithwiraj, Dan Wang, Natalie A. Carlson, and Tarun Khanna. "Machine Learning Approaches to Facial and Text Analysis: Discovering CEO Oral Communication Styles." Strategic Management Journal 40, no. 11 (November 2019): 1705–1732.
      • Article

      Creating Firm Disclosures

      By: Amir Amel-Zadeh, Alexandra Scherf and Eugene F. Soltes
      Managers expend significant time and effort preparing disclosures about firm performance and strategy. Although prior literature has explored how variation in the style and presentation of disclosures impacts investors' perceptions of firms, little is known about how...  View Details
      Keywords: Disclosure; Earnings Conference Call; Field Study; MD&A; Textual Analysis; Corporate Disclosure
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      Amel-Zadeh, Amir, Alexandra Scherf, and Eugene F. Soltes. "Creating Firm Disclosures." Journal of Financial Reporting 4, no. 2 (Fall 2019): 1–31.
      • 2019
      • Working Paper

      Machine Learning Approaches to Facial and Text Analysis: Discovering CEO Oral Communication Styles

      By: Prithwiraj Choudhury, Dan Wang, Natalie A. Carlson and Tarun Khanna
      We demonstrate how a novel synthesis of three methods—(1) unsupervised topic modeling of text data to generate new measures of textual variance, (2) sentiment analysis of text data, and (3) supervised ML coding of facial images with a cutting-edge convolutional neural...  View Details
      Keywords: Spoken Communication; Business History; Analytics and Data Science; Finance; Performance
      Citation
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      Choudhury, Prithwiraj, Dan Wang, Natalie A. Carlson, and Tarun Khanna. "Machine Learning Approaches to Facial and Text Analysis: Discovering CEO Oral Communication Styles." Harvard Business School Working Paper, No. 18-064, January 2018. (Revised May 2019.)
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