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Productivity in its relationships with services raises two issues: a definition and measurement issue, on the one hand, and an issue related to the productivity strategies implemented, on the other hand. This article addresses both issues, focusing more on the latter. Our goal is to account for the various productivity strategies implemented within services firms and to analyse their implications in terms of productivity definition and measurement. This analysis will allow us to discuss the role of the productivity concept and the relevance of the « productivity regime concept » in a post-fordist economy of services, quality and innovation. JEL codes: L8, J24, L25, L1