Publications
Publications
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- All HBS Web
(15)
- Faculty Publications (5)
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Results
- 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
- 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
- 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
- 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
- Forthcoming
- Article
The Diffusion of New Technologies
By: Aakash Kalyani, Marcela Carvalho, Nicholas Bloom, Tarek Hassan, Josh Lerner and Ahmed Tahoun
We identify phrases associated with novel technologies using textual analysis of patents,
job postings, and earnings calls, enabling us to identify four stylized facts on the diffusion of jobs
relating to new technologies. First, the development of economically... View Details