Philippe Aghion

Philippe Aghion (born 17 August 1956) is a French economist renowned for his foundational contributions to the theory of economic growth through innovation and competition. He holds the position of professor at the Collège de France, where he occupies the chair in economics of institutions, innovation, and growth, and serves as the Kurt Björklund Chaired Professor in Innovation and Growth at INSEAD, with additional affiliations as a visiting professor at the London School of Economics. In 2025, Aghion was awarded the Sveriges Riksbank Prize in Economic Sciences in Memory of Alfred Nobel, shared with Peter Howitt and Joel Mokyr, for establishing analytical frameworks that elucidate how market competition spurs technological innovation and long-term economic expansion via processes of creative destruction.

Aghion's seminal work, developed primarily in collaboration with Howitt, integrates Joseph Schumpeter's concept of creative destruction into endogenous growth models, demonstrating mathematically that competition incentivizes firms to innovate by rendering incumbent technologies obsolete, thereby sustaining productivity gains and aggregate growth. This Schumpeterian paradigm contrasts with earlier neoclassical models by emphasizing firm-level dynamics, entry barriers, and policy interventions like intellectual property protection and antitrust measures as causal drivers of innovation rates. Empirical extensions of his theories have influenced analyses of industrial organization, showing, for instance, that intensified competition correlates with higher patenting activity and R&D investment in sectors facing global rivals. Aghion's research portfolio extends to contract theory, institutional economics, and applications in transition economies, where he examined privatization's role in fostering innovation post-communism during his tenure as research coordinator at the European Bank for Reconstruction and Development.

Philippe Aghion was born on August 17, 1956, in Paris, France, into a Jewish family of entrepreneurial and intellectual background. His mother, Gaby Aghion (née Hanoka, 1921–2014), was an Egyptian-born fashion designer who founded the luxury fashion house Chloé in 1952 and pioneered the concept of high-end prêt-à-porter by introducing ready-to-wear collections using luxurious fabrics and innovative designs targeted at affluent women. Gaby had immigrated to Paris from Alexandria, Egypt, where she was raised in a cosmopolitan Sephardic Jewish milieu; her father was of Greek Jewish origin, and her mother of Italian Jewish descent.

His father, Raymond Aghion (1921–2009), was a French intellectual and photographer who documented aspects of his wife's early life and the Egyptian Jewish community. The family resided in Paris, where Aghion grew up immersed in a creative and innovative household; his mother's fashion enterprise exposed him to entrepreneurial risk-taking and creative processes from an early age, including interactions with designers like Karl Lagerfeld, who reportedly assisted with his German homework.