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• Article | Strategic Management Journal

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

  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 network algorithm—can shed light on questions related to CEO oral communication. With videos and corresponding transcripts of interviews with emerging market CEOs, we employ this synthesis of methods to discover five distinct communication styles that incorporate both verbal and nonverbal aspects of communication. Our data are comprised of interviews that represent unedited expressions and content, making them especially suitable as data sources for the measurement of an individual’s communication style. We then perform a proof-of-concept analysis, correlating CEO communication styles to M&A outcomes, highlighting the value of combining text and videographic data to define styles. We also discuss the benefits of using our methods versus current research methods.

  Keywords: CEOs; communication style; Machine learning; Spoken Communication; Nonverbal Communication; Personal Characteristics; Analysis; Performance;

  Citation:

  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.  View Details

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• Case | HBS Case Collection | July 2005 (Revised October 2019)

  The U.S. Current Account Deficit

  Laura Alfaro, Rafael Di Tella, Ingrid Vogel, Renee Kim, Sarah Jeong, Matthew Johnson, Jonathan Schlefer, Laura Alfaro, Rafael Di Tella, Ingrid Vogel, Renee Kim, Sarah Jeong, Matthew Johnson and Jonathan Schlefer

  Investors and policymakers throughout the world were confronted with the risk of painful economic consequences arising from the large U.S. current account deficit. In 2007, the U.S. current account deficit was $731 billion, equivalent to 5.3% of GDP. The implications of the deficit were debated with intensity. At one extreme, it was argued that large deficits would eventually resolve themselves smoothly, even if they persisted for many more years. Former Federal Reserve Chairman Alan Greenspan was among those expecting a "benign resolution to the U.S. current account imbalance." Other analysts, such as economists at the World Bank, believed the large deficits raised the risk of a sharp and disorderly fall of the dollar and that necessary macroeconomic adjustment could be painful, for the United States as well as for the rest of the world. The Financial Times asked: "How long will foreigners be prepared to make such generous 'gifts' to the US?" In this environment, Berkshire Hathaway, run by legendary investor Warren Buffett, postulated that current account imbalances would lead to "some chaotic markets in which currency adjustments play a part" and announced to shareholders a plan to increase investment in overseas companies to protect against this risk. It remained to be seen what the short- and long-term implications of the current account deficit would ultimately yield.

  Keywords: Macroeconomics; Borrowing and Debt; Currency; Foreign Direct Investment; Business and Government Relations; United States;

  Citation:

  Alfaro, Laura, Rafael Di Tella, Ingrid Vogel, Renee Kim, Sarah Jeong, Matthew Johnson, and Jonathan Schlefer. "The U.S. Current Account Deficit." Harvard Business School Case 706-002, July 2005. (Revised October 2019.)  View Details

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• Case | HBS Case Collection | July 2005 (Revised October 2019)

  The U.S. Current Account Deficit

  Laura Alfaro, Rafael Di Tella, Ingrid Vogel, Renee Kim, Sarah Jeong, Matthew Johnson, Jonathan Schlefer, Laura Alfaro, Rafael Di Tella, Ingrid Vogel, Renee Kim, Sarah Jeong, Matthew Johnson and Jonathan Schlefer

  Investors and policymakers throughout the world were confronted with the risk of painful economic consequences arising from the large U.S. current account deficit. In 2007, the U.S. current account deficit was $731 billion, equivalent to 5.3% of GDP. The implications of the deficit were debated with intensity. At one extreme, it was argued that large deficits would eventually resolve themselves smoothly, even if they persisted for many more years. Former Federal Reserve Chairman Alan Greenspan was among those expecting a "benign resolution to the U.S. current account imbalance." Other analysts, such as economists at the World Bank, believed the large deficits raised the risk of a sharp and disorderly fall of the dollar and that necessary macroeconomic adjustment could be painful, for the United States as well as for the rest of the world. The Financial Times asked: "How long will foreigners be prepared to make such generous 'gifts' to the US?" In this environment, Berkshire Hathaway, run by legendary investor Warren Buffett, postulated that current account imbalances would lead to "some chaotic markets in which currency adjustments play a part" and announced to shareholders a plan to increase investment in overseas companies to protect against this risk. It remained to be seen what the short- and long-term implications of the current account deficit would ultimately yield.

  Keywords: Macroeconomics; Borrowing and Debt; Currency; Foreign Direct Investment; Business and Government Relations; United States;

  Citation:

  Alfaro, Laura, Rafael Di Tella, Ingrid Vogel, Renee Kim, Sarah Jeong, Matthew Johnson, and Jonathan Schlefer. "The U.S. Current Account Deficit." Harvard Business School Case 706-002, July 2005. (Revised October 2019.)  View Details

  CiteView DetailsEducatorsPurchase

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