171In order to examine whether or not the Member State or the public body concerned has adopted the conduct of a prudent private operator in a market economy, it is necessary to place oneself in the context of the period during which the measures at issue were taken in order to assess the economic rationality of the conduct of the Member State or of the public body, and thus to refrain from any assessment based on a later situation (judgments of 16 May 2002, France v Commission, C‑482/99, EU:C:2002:294, paragraph 71, and of 25 June 2015, SACE and Sace BT v Commission, T‑305/13, EU:T:2015:435, paragraph 93).