This document discusses the challenges of implementing an open innovation model for evaluating ideas, using the case study of Electrolux. It first reviews the literature on open innovation, noting the benefits of accessing external knowledge but also the potential costs and risks, such as increased transaction costs and loss of intellectual property. The case study of Electrolux then examines how the company successfully implemented an open innovation model to generate and select ideas from both internal and external sources. Key factors that led to increased innovation rates are discussed.