“…Although the marginal evaluation cost of each idea is low, the cumulative evaluation cost when thousands of ideas are posted can be tremendous. Community based voting methodologies like simple discussion forums, community ratings (Carbone, Contreras, Hernández, & Gomez-Perez, 2011;Frey, Lüthje, & Haag, 2011) or more complex methodologies like prediction markets (Blohm, Riedl, Leimeister, & Krcmar, 2011;Spann & Skiera, 2009) that are based on stock-market trading algorithms can help to solve this challenge. Any assessment system based on a community scoring model, in which ideas can be awarded with a specific number of points, can help selecting the best idea (Hüsig & Kohn, 2011).…”