Launched in Paris in 2007 by JCDecaux, Vélib was expected to constitute the largest bicycle park of its kind in the world. But although wildly popular, its operations came under pressure because of the unexpectedly high incidence of vandalism. Many bikes were damaged or stolen.

This case describes carbon cap-and-trade regulation and the principle carbon emissions drivers within HeidelbergCement and the cement industry. This leads to the focal decisions in the case regarding technology choice, product specification and plant locations. Further complexities arise due to international competition and uncertainties associated with the evolving carbon market.

This case describes the successful implementation of sustainable operations at Pfizer's Freiburg production facility in Germany. It charts the planning and execution of an ambitious portfolio of projects directed toward energy efficiency, with significant financial, social and environmental impacts.

Paybox.net, founded in 1999, is a frontrunner in providing mobile payment services in Germany and other European countries. The case discusses the development and roll- out of the m-payment services, the business model and marketing approach used, the technological and organizational challenges that the company faced as well as the sustainability of the paybox competitive position.

After leading a successful rationalisation effort peter Ellwood, now Chief Executive of TSB's Retail Banking and Insurance unit, moved to the second phase of the bank's transformation process. Following two years of intense downsizing, this second phase (1992-1995) aimed at generating more sustainable sources of continued profit growth.