Pioneer of modern financial instruments, UC Berkeley Haas Professor Nils Hakansson, dies at 88

Professor Emeritus Nils H. Hakansson, known for his personal warmth and pioneering vision for financial markets that helped give rise to some of the most consequential investment instruments of the modern era, passed away in a car accident on April 17, 2026, in Sea Ranch, California. He was 88.

Hakansson, the Sylvan C. Coleman Professor of Finance and Accounting at UC Berkeley Haas, joined the faculty in 1969 and spent 33 distinguished years at the school, becoming one of the most influential figures in the history of modern finance theory. He is best known for his concept of the “superfund,” a radical proposal that would allow investors to tailor their financial exposure to any market outcome they chose.

His thesis was built around a deceptively simple idea—create a fund that owns a broad slice of the stock market, then divide it into a family of securities that each pay off only under specific market conditions, thus covering every possible outcome.

“Long before most others, he recognized that a firm could assemble a portfolio of securities and issue tradable claims backed by that portfolio, with payoffs tailored to different investor needs,” said Haas Professor Richard Stanton, the Kenneth Rosen Chancellor’s Chair in Real Estate. “In important respects, it anticipated the logic of today’s global ETF (exchange-traded fund) market—now measured in the trillions of dollars—and reflected so much of what made Nils special as a scholar: originality, clarity of thought, and the ability to see possibilities in finance that others had not yet imagined.”

From a country store in Northern Sweden to Berkeley

Born in Sweden on June 2, 1937, Hakansson grew up in a close-knit family as the eldest of three children, helping his parents at their country store in a remote northern region. Bright, athletic, and driven, he earned a scholarship to the University of Oregon, where he completed a bachelor of science in business administration and economics. He also competed on the track and field team, taught skiing at Mt. Bachelor, and worked in a local sawmill.

Hakansson went on to earn an MBA in accounting and statistics and a PhD in quantitative methods from UCLA, where he also met Joyce, the love of his life and his partner of 56 years. He began his professional career as a CPA at Arthur Young & Company before entering academia, holding faculty positions at UCLA and Yale before joining Haas in 1969.

Those who knew Hakansson remember him as a soft-spoken but tenacious scholar who was unafraid to challenge the status quo. His research ranged widely across investment theory, asset allocation, information economics, financial reporting, security design, and automated exchanges. He published in the leading journals of his fields, consulted for the RAND Corporation and numerous investment organizations, served on the editorial boards of several professional journals, and became a fellow of the Accounting Researchers International Association.

“Nils was an extraordinary scholar and a remarkable person. An old-school European in values and style, he exemplified strong independent thinking that was anchored to empirical analysis. He cast a cold eye on past accounting theories that were not scientifically rigorous,” said Ned Leiba, BS 74, MBA 83, Hakansson’s accountant and a long-time friend.

Building UC Berkeley Haas

Together with Professor Emeritus David Pyle, Hakansson is credited with building one of the nation’s premier finance faculties, recruiting and developing scholars who would go on to shape the field for generations.

“I learned much from this distinguished scholar who laid down theoretical foundations in both accounting and finance that brought both areas together. They are the foundations for my research and for the many students he cared for,” said Columbia University Professor Emeritus Stephen Penman, a former Haas faculty member whom Hakansson mentored after he joined the school in 1977.

Hakansson held the Sylvan C. Coleman Chair in Finance and Accounting from 1977 to 2002, served as president of the Western Finance Association from 1983 to 1984, and received an honorary doctorate from the Stockholm School of Economics in 1984, an occasion that included a dinner with other honorees and the King and Queen of Sweden.

Hakansson cared deeply for Haas, Penman said, “taking up the cause when he perceived that improvements were necessary and with a tenacity that was a little surprising for such a gentle man.” Beyond his research, he left a lasting mark on the physical and institutional fabric of the school. He chaired the Building Program Committee responsible for designing and overseeing the construction of the school’s current campus. He also chaired the search committee that identified Earl Cheit as dean, succeeding Richard Holton.

“Nils embodied everything we aspire to at Haas—rigorous thinking, genuine humility, and deep care for the people and the institution around him,” said Dean Jenny Chatman. “We are so grateful for his tremendous contributions to building the Haas we have today.”

Hakansson opened his home regularly to colleagues and students—international students in particular, inviting them in for meals and conversation and making them feel like family. And at a time when women were underrepresented on the Haas faculty, he went out of his way to make them feel seen and valued. In 1979, Professor Emeritus Frances Van Loo was just the third woman hired on a faculty of 75.

“He’d stop me in the hall to talk, sometimes to just check on how I was doing, but also to ask me about my opinion on a policy debate coming up in a faculty meeting.  He’d suggest that we have lunch and was comfortable about each of us paying for our own meals,” said Van Loo, who joined the Economic Analyis & Policy group and later the Business & Public Policy group. “I’m not alone in thinking that he was a gem and will be deeply missed.”

A family man with a generous spirit

Even with his many achievements, Hakansson was a man of remarkable personal warmth who wore his accomplishments lightly. He loved telling people he was 88, his daughter Carolyn recalled, because they never believed him.

“He embraced everyone,” Carolyn Hakansson said. “He really liked people and he never said a bad word about anybody. He had such a positive attitude and incredible work ethic. He never complained, he never bragged, and he was always humble.”

He remained physically vigorous well into his final year, continuing to make the drive up the coast to his beloved home at Sea Ranch. A committed environmentalist, he installed a Tesla solar roof and drove an electric vehicle, applying to his personal life the same forward-looking practicality he had brought to the design of financial markets decades earlier.

Hakansson was a passionate traveler throughout his life. His career took him around the world—to Bell Laboratories, the University of New South Wales, Simon Fraser University, Nagoya University, and the Stockholm School of Economics—often with family by his side. He also maintained deep and lifelong ties to Sweden, returning regularly and serving as chair of the Anna and Nils Hakansson Foundation, established by his parents to promote scientific research and the preservation of forestry in Sweden. He maintained a home and forest in the northern Sweden, sharing his roots with his children and granddaughter.

Following the passing of his beloved wife Joyce, Hakansson found love and companionship with Karin Guzman, with whom he traveled extensively. At the time of his passing, he was actively planning a family trip to England and the British Isles.

Hakansson is survived by his children, Carolyn and Nils Alexander Hakansson; his granddaughter, Alexandra Johnston; his sister, Anneli Thomas; and his partner, Karin Guzman.