Beißner, Patrick - In: Risks 7 (2019) 3, pp. 1-18
Theory 13: 341-60). In the spirit of Harrison and Kreps (1979) (Harrison, J. Michael, and David M. Kreps. 1979. Martingales …-economic foundation of viability in which ambiguity-neutrality imposes a fair-pricing principle via symmetric multiple prior martingales …