Financial returns are important, but for many companies, using capital to influence positive outcomes is just as important. Enter impact investing and the example of State Street’s SHE, a gender diversity index ETF designed to track U.S. companies leading their industry in placing women on boards of directors and in senior leadership positions. Harvard Business School professor Vikram Gandhi discusses his case entitled “State Street—The Development and Growth of SHE” — the importance of investing for impact and the potential for influence on corporate America.

Faber-Castell is a 255-year-old company that makes pencils. How does an established company like this think about innovation, particularly if and when to adopt a new technology? Harvard Business School professor Ryan Raffaelli’s research looks at established companies that produce beloved products and how they manage technological shifts in their industry and in the world. This case — entitled “Faber-Castell” — explores Faber-Castell’s “companion for life” strategy and its bet to double down on the pencil.

Longchamp’s Le Pliage is one of the fashion world’s most successful products, a cultural icon across the globe. But managing the low priced, nylon handbag is challenging as Longchamp tries to move its brand upmarket into higher priced, luxury leather goods. Harvard Business School professor Jill Avery discusses her case, “Longchamp” regarding the balancing act of cherishing the heritage of an established brand against the need to look forward and grow in the face of a rapidly changing industry.

Pal’s Sudden Service has developed a unique operating model and organizational culture in the fast food restaurant business. With an emphasis on process control, zero errors, and extensive employee training and engagement, Pal’s has been able to achieve excellent performance in an extremely competitive industry. Harvard Business School professor Gary Pisano discusses his case entitled “Pal’s Sudden Service: Scaling an Organizational Model to Drive Growth” — the company’s strategic challenge of deciding how much to grow and whether its organization model will scale.

Advertising in the digital age bears little resemblance to the “Mad Men” depiction — the Don Drapers of advertising have been replaced by big data and the people who work with it. Harvard Business School professor John Deighton, the author of the case, “WPP: From Mad Men to Math Men (and Women),” and Sir Martin Sorrell, founder and group chief executive of WPP and the protagonist in the case, discuss how WPP has been successful in the new advertising world order where algorithms and robots rule.

ShotSpotter provides gunfire detection sensors to cities across the United States. CEO Ralph Clark is interested in taking the company beyond the business-to-government sales model and into new services. Could his company provide a service to colleges and schools concerned with mass shootings? Could the technology be adapted for indoor applications like shopping malls and movie theaters? Or even citywide deployment through smart cities to detect gunfire during terrorist attacks. Harvard Business School professor Mitch Weiss discusses his cases entitled “ShotSpotter” — how moving from one business model to another is difficult, and how successful companies make the transition.

It’s a common challenge for almost every startup: how much and how fast to grow. But Vijay Shekhar Sharma, founder of the Indian mobile payments and commerce platform Paytm, knows that he wants to take his company to $100 billion and replicate its model in other emerging markets. Harvard Business School professor Sunil Gupta discusses his case “Paytm: Building a Payments Network” — how reaching Sharma’s lofty goal won’t be about technology and finding new solutions, but rather all about finding new use cases for existing solutions.

When CEO Jeffrey Dunn took over Sesame Street in 2014 and made a licensing arrangement with HBO, many people were skeptical this would take the program in the right direction. But with a new mission to, “Make kids smarter, stronger, and kinder,” and a lot more innovation, it seems the opposite is in the works. Harvard Business School professor Rosabeth Moss Kanter, who wrote the case entitled “Sesame Workshop: Bringing Big Bird Back to Health” with Harvard Business School professor Ryan L. Raffaelli, talks about reversing a losing streak with new partnerships and in the process determining how to answer foundational questions like, “Who are we if we make this deal?”

What does it take to successfully lead a team to the top of the highest peak in the world? First-year students find out as they participate together in, “Everest: A Leadership and Team Simulation.” Harvard Business School professor Amy Edmondson talks about the choice to use Mt. Everest as the backdrop for this academic exercise, designing the simulation, and what students learn about teamwork along their way “up the mountain.”

Health insurance that consumers like? Doesn’t sound possible, but South African company Vitality is doing just that. By focusing on consumer-driven health insurance ideas like paying customers to take care of themselves, Vitality has expanded to the UK and China. Harvard Business School professor Regina Herzlinger discusses her case entitled “The Vitality Group: Paying for Self-Care” — why this idea of paying for self-care has the potential to improve health care in the United States as well.