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Describes market experiments conducted by a major credit card issuer. In a typical experiment, the issuer sends out hundreds of thousands of solicitations based on information received from credit reporting agencies (e.g., credit score, past delinquencies, etc.). Selection bias is striking: the average risk profile of those responding to higher interest rates is significantly worse than that of respondents to lower rates. Tracking respondents for 27 months after the experiment, respondents to higher rates displayed significantly higher delinquency and bankruptcy rates. Based on a research paper by Larry Ausubel.

Although the federal gasoline tax played multiple roles in financing surface transportation infrastructure in the United States, experts did not agree on the tax's purpose. Some argued that it was essentially a fee for users of the nation's federally supported highways. Others suggested that it should play a more prominent role in environmental, energy, and transportation policy by correcting for driving-related externalities. Still others suggested that it should be used to reduce the federal budget deficit. Finally, the tax itself had remained at the same level since 1993, and with the Highway Trust Fund virtually insolvent, many experts believed it was time for an increase. The case presents a background on the U.S. federal gasoline tax, an overview of the market for gasoline in the United States, and survey of gasoline taxes in U.S. states as well as several other countries around the world.The case can be used to discuss the incidence of the gasoline tax, as well as its role as a Pigouvian tax to deal with negative externalities related to gasoline consumption and driving. There is sufficient data in the case to enable students to analyze the incidence of the federal gasoline tax and to determine the socially efficient level of the tax in light of externalities related to gasoline consumption and driving.

Rede Alta Velocidade, SA (RAVE), the state-owned company responsible for planning and developing a major high-speed rail project in Portugal, must persuade both public officials and lenders that the project is worth undertaking. It must also make a recommendation on the appropriate organizational form for the enterprise. Specifically, it must determine the role of the Portuguese government in financing and operating the high-speed rail network, with options ranging from full development and management of the project by the public sector to completely private development and management. Lying in between these two polar cases were a variety of hybrid models, often referred to as public-private partnerships (PPPs). Using data in the case, students have the opportunity to perform a benefit-cost analysis of the project. They also must think carefully about the optimal role of the government in a major new infrastructure project.After analyzing and discussing the case, students will be able to: Understand the nature of a global public good Perform a back-of-the-envelope benefit-cost analysis of polio eradication Discuss the appropriate strategy for eradicating an infectious disease Apply game theory to analyzing which countries would be likely to contribute funds toward global polio eradication Discuss the role of private organizations in the provision of global public goods

The years 2011, 2012, and 2013 witnessed both significant developments and setbacks in global polio eradication efforts. On the positive side, January 13, 2012, marked a full year since India had detected a case of wild poliovirus. On the negative side, polio continued to be endemic in three countries-Pakistan, Afghanistan, and Nigeria-and in those countries the goal of eliminating polio seemed more challenging than ever. Between December 2012 and January 2013, sixteen polio workers were killed in Pakistan, and in February 2013, nine women vaccinating children against polio in Kano, Nigeria, were shot dead by gunmen suspected of belonging to a radical Islamist sect. In addition, after a 95 percent decline in polio cases in 2010, the number of cases in Nigeria rebounded in 2011. Recognizing that polio was unlikely to be eliminated in these countries in the near term, the Global Polio Eradication Initiative moved its target date for eradication from 2013 to 2018.These setbacks sparked a debate about the appropriate strategy for global eradication of polio. Indeed, some experts believed that recent setbacks were not caused by poor management but were instead the result of epidemiological characteristics and preconditions that might render polio eradication unachievable. These experts argued that global health efforts should focus on the control or elimination of polio rather than on the eradication of the disease.This case presents an overview of polio and the Global Polio Eradication Initiative and recounts the successful effort to eradicate smallpox. The case enables a rich discussion of the current global strategy to eradicate polio, as well as the issue of whether eradication is the appropriate global public health objective. More generally, the case provides a concrete example of a particular type of global public good, namely infectious disease eradication.After analyzing and discussing the case, students will be able to: Understand the nature of a global public good Perform a back-of-the-envelope benefit-cost analysis of polio eradication Discuss the appropriate strategy for eradicating an infectious disease Apply game theory to analyzing which countries would be likely to contribute funds toward global polio eradication Discuss the role of private organizations in the provision of global public goods

Motorola invented mobile telephones and by the end of the 1980s came to dominate the mobile handset market with more than an 80% market share. A few years later, Motorola faced a key strategic choice of whether to focus its considerable resources on consolidating its dominance of the analog handset market or to shift these resources to emerging digital handset technologies. This decision shaped the handset industry and the role Motorola will play in it for the next decade.To illustrate incumbents' puzzling inertia toward initiating and participating in disruptive technologies.

In 1996, the St. Louis-based manufacturer Zoltek launched a massive expansion of capacity to produce commercial-grade carbon fiber, a composite material used to produce a wide variety of end products ranging from sporting goods to windmill blades. Zoltek's goal was to become the dominant firm in a market whose growth was expected to be spectacular starting in the late 1990s. Describes Zoltek's major strategic moves in the mid-1990s and provides a possible example of the Stackelberg leadership model from oligopoly theory.To explore the economic logic of a major capacity commitment.

In December 2010, one U.S. legislative action was largely overlooked in the popular press: the one-year extension of the 45-cent-per-gallon Volumetric Ethanol Excise Tax Credit (VEETC), commonly known as the “blender's credit.” Both proponents and opponents of the blender's credit liked to cite data to support their positions. Proponents pointed out the number of jobs created by new ethanol plants, while opponents cited unfavorable energy balances from the use of ethanol and the overall budgetary impact of the blender's credit. What was less clear—but potentially much more important than the selective data cited by advocates and critics of ethanol—was the overall impact of the blender's credit on the U.S. economy. In particular, to what extent did the ethanol subsidy—by influencing the allocation of resources to the ethanol market—act as a drag on efficiency in the U.S. economy? This case presents a history of ethanol in the U.S. and an overview of the market for ethanol-based motor fuel, including data on demand and supply fundamentals. It also discusses the broader U.S. energy market, as well as the U.S. market for corn. The case reviews other policy interventions besides the ethanol tax credit that have an impact on the market for ethanol-based motor fuel, such as tariffs and mandates. Finally, it surveys the ways other countries around the world, such as Brazil, have supported the use of ethanol-based fuel.Provides a vehicle for teaching the basic economic model of government subsidies using supply and demand curves. Enable students to determine the deadweight loss of the ethanol tax credit for the year 2006. Enables discussion of the possible benefits of the ethanol tax credit including reducing reliance on foreign oil and reducing carbon emissions. Careful interpretation of the economic evidence in the case is essential for students to develop a coherent point of view on these potential benefits.

In May 2009 the Office of the Chief Actuary for the U.S. Social Security Administration projected that by 2016 the Social Security Trust Fund would begin to spend more money than it took in through tax revenue. Further, by 2037 the balance in the Trust Fund would be down to zero, necessitating cuts in benefits to retirees. The U.S. Social Security system thus faced a long-term financial problem that needed to be addressed sooner rather than later. The experience of other countries in reforming their own systems of old-age insurance might provide some guidance for U.S. policymakers as they attempt to deal with the long-run fiscal challenges facing the U.S. Social Security system. This case focuses on reforms of old-age insurance systems in three countries: Australia, Mexico, and Sweden.This case gives students the opportunity to debate the variety of approaches that could be used to reform the U.S. Social Security system. It also gives insight into how countries around the world have structured their old-age insurance systems.

The case describes the competitive advantages that U.S. farmers enjoy in the global cotton industry and the subsidies they receive from the U.S. federal government. Arguments for and against the subsidies are presented in the context of global competition. The case includes the data needed to estimate a supply curve for 2004 cotton production and predict the average 2004 cotton price using total cotton consumption for 2004. Students can also estimate the result of eliminating the U.S. cotton subsidies on the average 2004 cotton price.Students have the opportunity to learn about the history and structure of U.S. cotton subsidies as well as their impact on global cotton prices. Students also are able to practice building and interpreting an industry supply curve.

Considers the competitive strategy of the Channel Tunnel just prior to the time it opened for business in 1994. Focusing specifically on the tunnel's Le Shuttle service for freight and passenger traffic, gives students an opportunity to explore whether Le Shuttle should follow a premium pricing strategy relative to the cross-channel ferries, match the ferries' prices, or undercut the ferries' prices. Following a section on the history of the tunnel's construction, provides an in-depth discussion of the cross-channel ferry business and the Le Shuttle services. Concludes by posing the question: What pricing strategy should Le Shuttle follow?To illustrate the key drivers of price competition in a differentiated products industry: differences in marginal cost; vertical differentiation among competitors; the degree of horizontal differentiation in the market; and the sources and sustainability of competitive advantage.

Between May 2000 and January 2001, the recently deregulated electricity market in the state of California experienced what many commentators have characterized as a meltdown. Over that period, wholesale electricity prices increased over 500%, power emergencies and the threat of rolling blackouts became daily occurrences, and the state's largest investor-owned utility was thrust into bankruptcy. Details California's attempt to deregulate its wholesale and retail electricity markets.To identify the drivers of increases in the wholesale price of electricity in California and to provide an opportunity to diagnose the causes of California's crisis.

In early 2000, Asahi's senior management was under considerable pressure to launch its own brand of happoshu, a low-end form of beer that enjoyed certain tax benefits under Japanese law. Unlike its major rivals, all of whom had launched happoshu brands in the previous few years, Asahi steadfastly refused to enter the happoshu category.To explore the economic logic of Asahi's strategy. To study how the entry of a new product affects price competition across two closely related product categories (beer and happoshu) and how an anticipated change in price competition might affect the economics of the launch decision.

Provides a narrative description of the price war in the U.S. airline industry that broke out in Spring 1992.To use in competitive strategy or microeconomics classes to explore the root causes of price wars.