Delattre, Sylvain; Robert, Christian Y.; Rosenbaum, Mathieu - In: Stochastic Processes and their Applications 123 (2013) 7, pp. 2603-2619
At the ultra high frequency level, the notion of price of an asset is very ambiguous. Indeed, many different prices can be defined (last traded price, best bid price, mid price, etc.). Thus, in practice, market participants face the problem of choosing a price when implementing their strategies....