ABSTRACT

This talk will present two results on the striking strategy in financial economics. The first one is a recent work on American put options in the Hobson-Rogers model (Math Finance, 1998); this is a model in which the asset's value brings the memory of the historical values. The second one is on model-free non-competitive auctions, which is based on the notion of Stochastic Dominance; we refer to Chan and Wong (Ann. Finance, 2008). The term "signal" appears both in the first and in the second; however it brings {\em different } insights in the two cases.