%0 Journal Article %T Firm-level innovation and efficiency in the food sector: Insights from a literature-based innovation output indicator %A Frick, Fabian %A Jantke, Corina %A Sauer, Johannes %J Applied Economics %V 53 %N 43 %P 5000-5017 %@ 1466-4283 %D 2021-09-14 %I Routledge %~ DeepDyve