WASHINGTON — A Washington think tank backed by Google Inc. and parent Alphabet Inc.’s GOOG, +2.39% GOOGL, +2.07% executive chairman, Eric Schmidt, has fired a prominent scholar who praised the $2.7 billion fine recently issued by European regulators against Google for antitrust violations.

Anne-Marie Slaughter, the chief executive of the New America Foundation, said in a statement Wednesday that she fired the scholar, Barry Lynn, because his “repeated refusal to adhere to New America’s standards of openness and institutional collegiality meant that we could no longer work together.” She said the firing was unrelated to his June criticism of Google.