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- 2021
- Working Paper
Who Closed the Schools?
By: Joshua D. Coval
This paper examines the differences in characteristics between U.S. public schools that opted for virtual instruction because of COVID-19, and schools that did not. Much of the variation can be explained by measures of the degree to which districts favored teachers...
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- December 2017
- Response
Reply: Do Powerful Politicians Really Cause Corporate Downsizing?
By: Lauren Cohen, Joshua D. Coval and Christopher J. Malloy
While we commend the initiative of Snyder and Welch (2017), we lay out in this short reply why we remain highly confident in our results and our interpretation thereof. We welcome authors to continue to explore the data for themselves and look forward to the new...
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- December 2011
- Article
Do Powerful Politicians Cause Corporate Downsizing?
By: Lauren Cohen, Joshua Coval and Christopher J. Malloy
This paper employs a new empirical approach for identifying the impact of government spending on the private sector. Our key innovation is to use changes in congressional committee chairmanship as a source of exogenous variation in state-level federal expenditures. In...
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- November 2011
- Supplement
High Noon at Vail Mountain, Spreadsheet
By: Albert Sheen, Luis Viceira and Joshua Coval
- November 2011 (Revised July 2021)
- Case
High Noon at Vail Mountain
By: Joshua Coval, Albert Sheen and Luis Viceira
- 2011
- Working Paper
Do Powerful Politicians Cause Corporate Downsizing?
By: Lauren H. Cohen, Joshua D. Coval and Christopher J. Malloy
This paper employs a new empirical approach for identifying the impact of government spending on the private sector. Our key innovation is to use changes in congressional committee chairmanship as a source of exogenous variation in state-level federal expenditures. In...
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- Article
The Economics of Structured Finance
By: Joshua D. Coval, Jakub W. Jurek and Erik Stafford
This paper investigates the spectacular rise and fall of structured finance. The essence of structured finance activities is the pooling of economic assets like loans, bonds, and mortgages, and the subsequent issuance of a prioritized capital structure of claims, known...
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Keywords:
Financial Crisis;
Asset Management;
Debt Securities;
Investment;
Risk Management;
Behavior
- March 2009 (Revised August 2012)
- Teaching Note
Tottenham Hotspur plc (TN)
By: Lauren H. Cohen, Joshua D. Coval and Christopher J. Malloy
Teaching Note for [209059].
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- November 2008 (Revised July 2021)
- Case
Tottenham Hotspur plc
By: Lauren H. Cohen, Joshua D. Coval and Christopher J. Malloy
Tottenham Hotspur Football Club is a publicly-owned professional soccer team based in London, England. The club's chairman, Daniel Levy, is contemplating a significant investment in physical assets, including the development of a new stadium as well as the acquisition...
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- October 2008
- Teaching Note
Samoa Tala (TN)
By: Joshua D. Coval, Bhagwan Chowdhry and Konark Saxena
Teaching Note for [209053].
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- 2008
- Working Paper
The Economics of Structured Finance
By: Joshua D. Coval, Jakub W. Jurek and Erik Stafford
- September 2008
- Case
Samoa Tala
By: Joshua D. Coval, Bhagwan Chowdhry and Konark Saxena
This case examines currency risks faced by Microfinance Institutions, and evaluates strategies to hedge them in countries with pegged currency regimes and no derivatives markets. An MFI based in Western Samoa borrows in different currencies like the US dollar and the...
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- March 2008
- Course Overview Note
Dynamic Markets
By: Joshua D. Coval and Erik Stafford
The Dynamic Markets course at Harvard Business School is organized around the hands-on application of financial decision making in a wide variety of capital market settings. The course relies heavily on in-class simulations of a range of market settings where students...
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- January 2008
- Background Note
Convertible Arbitrage
By: Joshua Coval and Erik Stafford
The goal of this simulation is to understand how convertible bonds can be viewed as a portfolio of simpler securities and to introduce an over-the-counter market. The convertible bonds that are available during the simulation are at-the-money and in-the-money so that...
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- January 2008
- Background Note
Equity Derivatives
By: Joshua Coval and Erik Stafford
The goal of these simulations is to understand the dynamic replication technique behind the Black-Scholes/Merton options model. The simulations focus on a single stock and a risk-free discount bond, which are used to replicate a contingent payoff. The underlying stock...
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- January 2008
- Background Note
Equity Options
By: Joshua Coval and Erik Stafford
The goal of this simulation is to understand the reliance of option values on volatility. When an investor trades an option, they are essentially trading volatility. Therefore, much of the focus in this lesson is on forecasting volatility. Students are able to use two...
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- January 2008
- Background Note
Index Options
By: Joshua Coval and Erik Stafford
The goal of this simulation is to understand the patterns in index option prices that are not predicted by the Black-Scholes model. In particular, the simulation focuses on two properties of options prices. First, at-the-money implied volatilities from index options...
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Keywords:
Volatility;
Stock Options;
Investment;
Price;
Profit;
Risk Management;
Mathematical Methods
- January 2008
- Teaching Note
Options (TN)
By: Joshua D. Coval and Erik Stafford
Teaching Note for [208116], [208117], [208118], and [208119].
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Keywords:
Stock Options
- January 2008
- Background Note
Collateralized Debt Obligations (CDOs)
By: Joshua Coval and Erik Stafford
This lesson integrated Merton's (1974) contingent claims model of debt and equity claims with the CAPM, which allows us to examine the risks and pricing of credit portfolios and the derivative claims issued against them. In particular, this model is used to make...
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