Martine Quinzii

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Martine Quinzii (died May 25, 2018) was a French mathematical economist known for her work on financial markets, incomplete markets, macroeconomics, and general equilibrium theory. She studied mathematics in Paris, earning a master's degree in 1970, the agrégation in mathematics in 1971, and a Master of Advanced Studies in 1972. She earned a PhD at the University of Paris II Panthéon-Assas in 1986; her dissertation, Rendements croissants et équilibre général, was supervised by Jean Fericelli. She taught in several French universities from 1972 to 1986 and earned a habilitation in 1988, then moved to the United States, first to the University of Southern California and later to the University of California, Davis, which she joined in 1991 and where she remained until retirement in 2016, serving as department chair from 1995 to 1999 and again from 2006 to 2007.

Quinzii wrote Rendements Croissants et Efficacité Economique (CNRS, 1988) as her habilitation monograph and Increasing Returns and Efficiency (Oxford University Press, 1992). With her husband Michael Magill, she co-authored Theory of Incomplete Markets (MIT Press, 1996) and the two-volume Incomplete Markets (Vol. I: Finite Horizon Economies; Vol. II: Infinite Horizon Economies) (Edward Elgar, 2008). She was elected a Fellow of the Econometric Society in 2000 and a Fellow of the Society for the Advancement of Economic Theory in 2011.