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Planetary Resources, Inc. (PRI) had a bold, some said crazy, vision: to mine asteroids. One might have assumed that developing the right technology would be the greatest challenge facing PRI. But even if the fledgling company could develop and deploy the sophisticated imaging, prospecting, and communication capabilities required for mining asteroids, two additional obstacles meant success was not guaranteed. First, uncertainty remained over whether, and how, property rights to resources mined in space would be enforced. PRI's leadership's challenge was to anticipate, and perhaps shape, how this uncertainty would be resolved. Making that balancing act more difficult was a second factor: a complex and underfunded U.S. regulatory infrastructure that threatened to slow PRI's progress and escalate costs.

An engineer and technology entrepreneur, Nobu Okada, had turned a mid-life crisis into a bold-some would say quixotic-quest to prevent a tragedy of the commons at the global scale. Namely, Okada believed the accumulation of debris in near-Earth orbital space posed a serious threat to a vast array of critical satellites and, thereby, both the modern information economy and the future of human activities in space. Frustrated at what he saw as far too slow a reaction to the threat among major space powers, Okada planned to develop a spacecraft capable of adhering to, and redirecting, that debris. By lowering the costs of debris removal, he hoped to make it routine, even in the absence of government action. As of 2016 his company, Astroscale, which had secured private funding years earlier, was nearing the first demonstration of the technology. This case is intended to help students understand how a tragedy of the commons develops in a specific, nearly textbook example. As important, this case is about potential solutions to the tragedy of the commons when the market and policy both fall short.

Jeff Bezos, six years after starting a revolution in retailing with Amazon.com, turned his life-long passion for space into a start-up, Blue Origin. Blue (as it was called) was a part of the New Space industry, a collection of startup aerospace engineering companies that were intent on disrupting the American space sector with new technologies, management approaches, and competitive pressure. NASA hoped to leverage New Space to outsource its near-Earth activities and refocus its own efforts on deep space exploration. One of the agency's main mechanisms for this shift of activities was its Commercial Crew Development program (CCDev), a multi-phase initiative launched in 2009. Blue participated in the first two rounds of CCDev, and by all accounts these had been win-win experiences for it and NASA. The decision point of the case is whether Blue should participate in the third, much larger, and more complex, stage of CCDev. The trade-off facing Blue's leaders was between the legitimacy, expertise, and funding provided by working with NASA and the autonomy, efficiency, and independence threatened by working with NASA. How would Blue, with its clear respect for NASA but its desire (and financial ability) to set its own priorities, make this decision?

On August 22, 1996, U.S. President Bill Clinton signed into law the Personal Responsibility and Work Opportunity Reconciliation Act (PRWORA)-a dramatic reform of the American system of economic assistance for the poor that, as its title suggested, attempted to encourage labor force participation rather than reliance on federal support. Clinton's decision to support a proposal that substantially cut spending on economic assistance was controversial among members of the Democratic Party, especially so close to the 1996 election. Republicans, in contrast, hailed the signing of PRWORA. Was the 1996 welfare reform a triumph of centrist policymaking that would establish a more sustainable version of economic assistance for poor Americans, or was it a dangerous first step toward the gradual disappearance of that assistance? Whose vision of American society did it represent? Instructors may also obtain a Teaching Note, written by this case's author, that provides suggestions for using this case effectively in the classroom.

Germany's Chancellor Angela Merkel faced economic and moral pressure to encourage greater immigration from struggling European, and especially Eurozone, countries after the economic downturn that began in 2008. In fact, it was possible that both the Euro currency union and the European political union depended on increasing migration across member countries, including into Germany. But German domestic politics made Merkel's decision a difficult one. Instructors may also obtain a Teaching Note, written by this case's author, that provides suggestions for using this case effectively in the classroom.

Equality of opportunity is endorsed universally even though, or more likely because, it can mean such different things to different people. What definition of equality of opportunity ought to figure into policy decisions? How close, or far, is the United States from providing equal opportunity? Instructors may also obtain a Teaching Note, written by this case's author, that provides suggestions for using this case effectively in the classroom.

Taxing corporations is popular, but why? Corporations do not bear the burden of taxes, people do, and the incidence of the corporate income tax burden is likely to be far different from what many of its supporters assume. Instructors may also obtain a Teaching Note, written by this case's author, that provides suggestions for using this case effectively in the classroom.

Per dollar of revenue, no tax policy generates more sound and fury than the taxation of estates. To supporters, the tax is a break on the concentration of wealth and power and an easy way to fund redistribution. To opponents, the tax is an unjust punishment of the frugal that sacrifices economic growth for short-term interests. Instructors may also obtain a Teaching Note, written by this case's author, that provides suggestions for using this case effectively in the classroom.

In the first decade of the 21st century, national debt as a share of GDP rose dramatically in the United States and across the developed world. This case consists of excerpts from leading commentators explaining and commenting on this trend and the economic and moral problems it poses. Instructors may also obtain a Teaching Note, written by this case's author, that provides suggestions for using this case effectively in the classroom.

In 2012, the Chicago Teachers' Union went on strike over proposed reforms by the city's mayor, Rahm Emanuel. At the heart of the reforms, and the strike, was frustration over many decades of underperformance in the Chicago Public Schools (CPS) and a surge of controversial, largely market-based, experimentation in public education in many U.S. cities.

The unelected Federal Reserve Chairman exerts exceptional influence over the U.S., in fact global, economy. As Janet Yellen prepared to take over the position, she would look back on Chairman Bernanke's tenure during the Great Recession. During that time, Bernanke was attacked by critics from both the left and the right for guiding monetary policy into dangerous territory. Their criticisms echoed arguments Bernanke himself had made with regard to past downturns in Japan and Europe. Were the critics right, or was the Bernanke Fed charting a wise middle course? Instructors may also obtain a Teaching Note, written by this case's author, that provides suggestions for using this case effectively in the classroom.