Former Michigan Ross Professor Gautam Ahuja's "Collaboration Networks, Structural Holes, and Innovation: A Longitudinal Study" marked a significant turn in the way scholars view the impact of inter-organizational networks on innovation. Until this point, the common perception was more or less linear: the more connections a firm has, the better it is for innovation. However, Ahuja's research added a layer of complexity by considering indirect ties and structural holes in a firm's network. The results of Ahuja's study challenged existing theories at the time and opened up an entirely new area of research. Now, scholars must consider not only the quantity of a firm's connections but also their quality and structure and how these elements influence innovation. This nuanced understanding helped expand the study of inter-organizational networks, underlining how the firms' positions within such networks can dictate their innovation output. This paper is credited with kickstarting a whole new area of research -- inter-organizational networks and innovation -- which focuses not just on the number of connections a firm has but the whole structure of its network and how it impacts its ability to innovate.

Professor Gautam Kaul and two former PhD students, in their seminal 1994 study titled, "Transactions, Volume, and Volatility" convincingly argued and verified empirically that it is the occurrence of a trade in a certain direction rather than its dollar value (or volume) that has the greatest effect on prices, hence the greatest relevance when assessing the liquidity of the market where that trade took place. A trade sign is determined by the buyer or seller's information, while market conditions determine trade amount and price. This is a simple yet extremely powerful notion that was originally predicated in theory but had no empirical support before their 1994 study. The publication of this study opened the door to the accurate measurement and needed assessment of market liquidity. These days, the approach they recommended is widespread in its use.

The original trading floor at the Michigan Business School was established in 1999. At the time, it was the 12th academic trading lab to be developed in the United States and one of the first in a large public university. 

Later, with a generous donation by John and Georgene Tozzi, a new lab was built. Over the years, thousands of students have come through the lab. 

Today, there are approximately a dozen investment clubs, seven of which meet weekly in the lab. When the lab was first getting started, the student-managed fund was at $95,000, which has since grown to $700,000.

The Integrated Product Development course is a unique cross-disciplinary experiential course delivered jointly by Michigan Ross, the College of Engineering, and the Stamps School of Art and Design. The course requires teams of business, engineering, and art students to execute the full range of the product development and launch process, from early-stage ideation through design and fabrication to launch stage promotion, pricing, and inventory decisions. 

It has been continuously offered for more than 30 years and has been featured on CNN and in BusinessWeek, the New York Times, and the Wall Street Journal. Professor William Lovejoy originally designed this course, but it was subsequently taught by a series of dedicated professors drawn from the three units. It remains a course students remember and refer back to throughout their professional careers.

Sensory marketing is a relatively new and growing field of marketing that Professor Aradhna Krishna pioneered in the early 2000s. Krishna saw that there were disparate fields of study on senses, but there was no cohesion between these fields. She brought all these sub-fields together under the umbrella of sensory marketing and organized the first conference on it in 2008. She then wrote two books and dozens of scholarly articles on the subject to make the field grow. And the field did grow both in academia and in practice -- enough for Harvard Business Review to do a lead Ideawatch article on it featuring Krishna as the world's foremost expert on the topic. Krishna has defined "sensory marketing" as marketing that engages the consumers' senses and affects their perception, judgment, and behavior. Krishna continues to publish important, scholarly articles on the topic. She also started the Sensory Marketing Lab at Michigan Ross, which attracts PhD students and post-docs from around the world.

In 2021, Assistant Professor Andreas Hagemann developed a new econometric methodology that addresses the complexities of clustered data to enhance the accuracy and reliability of empirical work in economics and related fields. Typical examples of clusters are firms, cities, or states. The central challenge is that units within clusters may influence one another or may be influenced by similar environmental factors in ways that cannot be observed. Empirical researchers know that neglecting to account for clusters can yield results where non-existent effects erroneously appear as highly significant. Hagemann's research agenda developed new tools to address this issue in challenging and empirically relevant scenarios. His work has had a substantial impact on econometric theory and empirical practice. For instance, the methodology he developed is now the standard option for clustering in the canonical implementation of quantile regression in the statistical programming language R.

The root of the Great Financial Crisis of 2008-2009 lay in poor-quality residential mortgage loans made by financial institutions. A set of academic research papers established that lenders made poorer quality loans when they anticipated selling the loans to investors rather than continuing to own the loans until they matured. When loans were sold, a complex securitization process led to a large distance between the originator of a mortgage and the final investor in the loans. Amit Seru, PhD '07, and co-authors established in an important series of papers that focused on 1) keeping most characteristics of loans the same, loans that were only marginally easier to securitize had significantly higher default rates than those that were marginally more difficult to securitize, 2) (in work with Professor Uday Rajan) securitized loans, the interest rate (which represents the compensation to investors for bearing the risk of default by the borrower) became an increasingly worse predictor of default in the build-up to the GFC, and 3) information passed on to investors by mortgage securitizers was limited and sometimes outright fraudulent. In another crucial strand of work, Professor Amiyatosh Purnanandam demonstrated that 1) loans held by banks on their own balance sheets had lower default rates than otherwise identical loans sold by banks to investors and 2) (in work with Taylor Begley, PhD '14, and Kuncheng Zheng, PhD '15) even with securitized loans, default rates were lower when the riskiest tranche was held by the lender rather than sold to investors. Collectively, the work done by Ross faculty and PhD alums showed that the ability to securitize mortgage loans undermined the incentives of lenders to the point that low-quality mortgage loans were made, essentially providing the dry timber that fueled the GFC.

William Davidson (1922-2009) was a successful global business leader and alum of the University of Michigan. He understood the value of the private sector to empower people around the world. 

After the fall of the Berlin Wall, Davidson recognized the value of educating and empowering economic decision-makers in formerly centralized economies with the tools of commercial success. Davidson partnered with U-M to create a unique institute providing consulting and training services to nonprofits, corporations and small businesses in emerging markets with the goals of economic growth and social progress. Since 1992, the William Davidson Institute (WDI) has served as a platform to introduce students to the challenges and opportunities facing firms in low- and middle-income countries. 

Over its history, the Institute has supported U-M student teams, totaling more than 1,800 students, who collaborate with business and nonprofit partners to provide analysis and develop solutions built upon the foundation of basic business principles. To ensure ongoing access to current and relevant business education, WDI Publishing also produces and distributes high-quality, cutting-edge business cases and other teaching materials, with more than 700 cases in its collection, reaching approximately 800 universities and institutions globally. 

The Institute is also home to NextBillion.net, an online platform for discussing business models and innovations that address development challenges in low- and middle-income countries. The platform reaches more than 25,000 readers a month.

In the 1990s, a research team at Michigan Ross, led by Emeritus Professor Claes Fornell, created the American Customer Satisfaction Index. This groundbreaking project included Professors Eugene Anderson and Michael Johnson, as well as Research Scientist Jaesumg Cha and Barbara Everitt, former director of the U.S. Census Bureau. 

ACSI represents a paradigm shift in measuring market performance, offering a more complete view of firms, industries, and economies and treats customer satisfaction as a latent construct connecting expectations, perceived quality and perceived value, through customer satisfaction, to customer voice and loyalty. For the past three decades, ACSI has catalyzed a wealth of peer-reviewed research in marketing and business. Empirical studies consistently find ACSI positively associated with profitability, cash flows, stock returns, credit ratings, positive earnings surprises, revenue, gross margins, return on investment, cash flow stability, and operating margins. Greater ACSI is also associated with lower cost of capital, cost of debt, and selling costs. At a macro level, ACSI is found to be predictive of gross domestic product. 

Published research by the ACSI team enjoys wide recognition, garnering more than 100,000 citations. Additionally, ACSI-related research has played an outsized role in establishing customer satisfaction as an essential metric within firms' management information systems, priority setting, and key performance indicators.

Professor Paul W. McCracken was part of the Michigan Ross faculty from 1948-1986. He was a prominent economist and adviser to both Republican and Democratic presidents and was also an advocate for an active government role in economic stabilization. McCracken advocated for government policies to moderate business cycles, control inflation, and address unemployment in order to assist the disadvantaged. As a result, McCracken played a central role in addressing the rising inflation of the late 1960s and early 1970s during his tenure as an economic adviser to President Richard Nixon. McCracken criticized the government for not taking sufficient measures to combat inflation, and he supported a policy of gradualism, which aimed to slow inflation by reducing economic growth slightly without causing a recession. He proposed a combination of budget surpluses and tighter monetary policy to control inflation without severely disrupting the economy. McCracken was present during the decision to unilaterally end the Bretton Woods system, which had fixed exchange rates for major currencies. This decision resulted in far-reaching changes in the international monetary system.

In their paper, “Crowdfunding the Front Lines: An Empirical Study of Teacher-Driven School Improvement,” Professors Samantha Keppler, Jun Li, and Andrew Wu conducted the first large-scale empirical test of the frontline improvement theory in K-12 schools. The theory, originating in automotive manufacturing, states that empowering front-line employees to identify organizational and process problems and implement solutions improves organizational performance and customer satisfaction. In this case, the team of Michigan Ross professors was interested in how teacher-identified problems in the classroom and crowd-funded solutions improved learning outcomes for K-12 students.

The team analyzed data on thousands of K-12 teacher projects on the largest teacher crowdfunding site, DonorsChoose. They found that one funded project (about $400 in value), on average, achieves a significant increase in the percentage of students scoring basic and above on all tested subjects in high school, as well as science and language arts in primary and middle schools. This effect translates to two-nine additional students moving up to at least a basic level of proficiency in the correlating subject. The effect of these projects is greatest in low-income schools, where funded projects, on average, move four-10 additional students to at least a basic level of proficiency in tested subjects.

From the textual analyses of the teacher's written statements about the impact of the projects in their schools, Keppler, Li, and Wu additionally learned that student academic performance is significantly better when teachers use crowd-funded money to improve knowledge retention, as a repeated learning tool, and to differentiate or personalize learning.

Due to the demonstrated impact of teacher-driven crowdfunded projects, DonorsChoose has partnered with eight states to spend COVID-19 education relief funding on teacher crowdfunding projects. To date, these partnerships have funded over $100 million of teacher projects from over 100,000 teachers, impacting over 10 million students.

In 2006, Professor Sue Ashford, associate dean for leadership programming, founded the Ross Leadership Initiative, which was the precursor to the Sanger Leadership Center and one of the first organized leadership programs among business schools worldwide. The initiative was influenced by Ashford's research on learning leadership via experience and Professor Noel Tichy's action-based learning concepts. Suddenly students were not just learning about leadership but were actually engaged in doing it. Prominent among these efforts was the highly influential Leadership Crisis Challenge, which puts students in the hot seat needing to resolve a crisis in the moment. This program was recognized with the Provost's Teaching Innovation Prize in 2011 and remains a prominent and popular program in the school to this day. Later, under the leadership of Professors Scott DeRue and Gretchen Spreitzer, RLI grew and launched new programs that persist today, including Story Lab, the Ross Leaders Academy, and more. In 2015, alum Stephen W. Sanger, MBA '70, and Karen Sanger made a defining gift of $20 million to establish the Sanger Leadership Center. With the Sangers' gift, the Sanger Leadership Center, now under the leadership of Professor Lindy Greer, has created an array of custom programs and workshops and now offers leadership development programs for students across the university.

Michigan Ross has long been a pioneer in entrepreneurial education, introducing the nation's first course on entrepreneurship in 1927. However, in the early 1970s, Professor LaRue Hosmer played a pivotal role in championing entrepreneurship education at Ross. He developed and taught courses in small business management and a seminar on small business formation. He is considered the founder of the Michigan Entrepreneur Track and has also inspired present-day entrepreneurship faculty at Michigan Ross, including Professor Andy Lawlor. Lawlor was a student in Hosmer's entrepreneurial management course in 1973, and Hosmer has been an important mentor to Lawlor, helping to bridge the gap between business and teaching. Lawlor began guest lecturing under Hosmer's guidance in 1975 and assumed the teaching responsibilities for the entrepreneurship classes in 1981. Over the years, many successful companies have been born from Hosmer and Lawlor's teaching.

Michigan Ross is known for being one of the first places to promote and provide rigorous evidence contrary to the efficient market hypothesis. The work of Professor Victor Bernard, a faculty member from 1982-1995, played a huge role in the beginnings of literature on market inefficiency. His work in valuation and fundamental analysis was the first to provide evidence that investors could not fully process information in earnings releases. The inefficient markets argument was further supported by the work of Professor Richard Sloan, a faculty member from 1997-2007. Bernard demonstrated that market participants treat the two basic components of accounting — cash and accruals — in an irrational way when making their valuation of corporate securities. This behavior became known as the "accrual anomaly." Bernard's work twice won the Notable Contribution to the Accounting Literature Award. 

The Michigan Business Challenge is a prestigious business plan competition hosted by the Zell Lurie Institute for Entrepreneurial Studies. It allows U-M students to showcase their entrepreneurial ideas, receive feedback from experienced judges, and compete for over $100,000 in cash prizes to support their ventures. 

The Michigan Business Challenge was established in 1984 at Michigan Ross and has since become one of the region's most impactful and well-known startup competitions. Over the years, the MBC has supported numerous successful startups, generated millions of dollars in funding, and helped launch successful entrepreneurial careers for U-M students and alumni. The MBC is open to various stages of business concepts, from early-stage ideas to established businesses. 

The competition consists of three tracks that cater to specific industry sectors, including the Seigle Impact Track for social ventures, the Invention Track for ventures that have intellectual property at the core of their high-tech venture, and the Innovation Track for growing startups. These tracks provide tailored resources, networking opportunities, and funding for participants. Notable entrepreneurial ventures that have come through the MBC include Morning Brew, Xoran Technologies, AMBIQ Micro, Elevate K-12, and many more.

With generous support from the Mitsui Life Insurance Company, Professor E. Han Kim helped to establish the Mitsui Life Financial Research Center in 1990. The center supports research in finance in a myriad of ways and functions as an active community of faculty, students, and visiting research scholars. Since its inception, the center has rapidly expanded its influence and reputation in supporting and disseminating academic research in financial economics. In 1994, a gift from Nippon Telegraph and Telephone allowed the center to offer even greater research support to Michigan Ross faculty. The center holds annual symposiums in Ann Arbor, Michigan, as well as in Tokyo, Japan, and provides research support for faculty and doctoral students through sponsoring weekly Mitsui Finance Seminars, NTT Fellowships, the Mitsui Distinguished Visiting Scholar program, weekly finance reading groups, and data acquisitions.