Publications

September 2007 (Revised November 2008)
Case

Sinopec: Refining its Strategy

By: Richard H.K. Vietor and Julia Galef

China's oil industry, with majority ownership vested in the government, had engaged in an "equity oil" strategy for the past few years-acquiring equity interests in oil producing nations including Sudan, Angola, and Iran. Outside critics, however, suggested that the... View Details

Keywords: Non-Renewable Energy; Equity; Foreign Direct Investment; Growth and Development Strategy; Demand and Consumers; State Ownership; Energy Industry; China

September 2016 (Revised March 2018)
Case

Qalaa Holdings and the Egyptian Refining Company

By: Victoria Ivashina and Marc Homsy

This case follows Qalaa Holdings, a successful Egypt-based private equity firm, and gives insight into the types of investments it pursued, its growth over time, and the limited partner base it had at hand. It also allows students to consider and debate whether the... View Details

Keywords: Africa; Structuring And Financing Large Projects; Private Equity; Infrastructure; Project Finance; Emerging Markets; Financial Services Industry; Egypt; Africa

June 2017
Teaching Note

Qalaa Holdings and the Egyptian Refining Company

By: Victoria Ivashina and Jeffrey Boyar

Teaching Note for HBS No. 217-011 View Details

Keywords: Private Equity; Infrastructure; Emerging Markets; Africa; Structuring And Financing Large Projects; Financial Services Industry; Egypt

September 2003 (Revised February 2010)
Teaching Note

Zipcar: Refining the Business Model (TN)

Teaching Note for (9-803-096), (9-806-717), and (9-806-718). View Details

Keywords: Transportation Industry; Service Industry

July 1987
Case

Sun Refining and Marketing Co. (B)

By: D. Quinn Mills and G Bruce Friesen

Find at Harvard

July 1987
Case

Sun Refining and Marketing Co. (A)

By: D. Quinn Mills and G Bruce Friesen

Keywords: Energy Industry

Find at Harvard

1990
Chapter

Refinement of Nash Equilibrium: The Main Ideas

By: E. Kohlberg

Keywords: Mathematical Methods

Other Article

Should You Refinance Your Mortgage with Your Current Lender?

By: David Hao Zhang

Keywords: Mortgage Lending; Mortgages

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November 1989
Case

CPC International: The Shift from Corn Refining to Consumer Goods

By: Ray A. Goldberg

Keywords: Marketing

Find at Harvard

11 Aug 2014
Working Paper Summaries

Decision Making Under Information Asymmetry: Experimental Evidence on Belief Refinements

Keywords: by William Schmidt & Ryan W. Buell

Article

Refined Configuration Results for Extremal Type II Lattices of Ranks 40 and 80

By: Noam D. Elkies and Scott Duke Kominers

We show that, if L is an extremal Type II lattice of rank 40 or 80, then L is generated by its vectors of norm min(L)+2. This sharpens earlier results of Ozeki, and the second author and Abel, which showed that such lattices L are generated by their vectors of norms... View Details

Keywords: Mathematical Methods

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Article

Hinged Dissections Exist

By: Timothy G. Abbott, Zachary Abel, David Charlton, Erik D. Demaine, Martin L. Demaine and Scott Duke Kominers

We prove that any finite collection of polygons of equal area has a common hinged dissection. That is, for any such collection of polygons there exists a chain of polygons hinged at vertices that can be folded in the plane continuously without self-intersection to form... View Details

Keywords: Folding; Reconfiguration; Hinge; Plygon; Refinement; Mathematical Methods

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June 2013 (Revised June 2014)
Case

Valero Energy Corporation and Tight Oil

By: Richard H.K. Vietor, Eric Adamson, Aaron Byrd, Ned Chiverton, Mariko Meier and Rob Rain

Valero Energy, an incredibly successful US refiner, needs to make some decisions about tight oil. As production of light tight oil increases—from Eagle Ford, Bakken and elsewhere—Valero considers whether to add topping capacity to handle it, on top of its recent... View Details

Keywords: Petroleum; Oil ＆ Gas; Energy; Environment; Refining; Globalization; Tight Oil; Strategy; Natural Environment; Demand and Consumers; Supply and Industry; Policy; Energy Sources; Energy Industry; United States