“…In the recent years, many works have been devoted to the description of order book dynamics. Order book models can be essentially divided into two types: economic models, where one focuses on the behaviors of individual agents and their optimal decisions, see for example Parlour (1998), Foucault (1999) and Roşu (2009); statistical models, where the order flows are seen as random processes, see Smith, Farmer, Gillemot, and Krishnamurthy (2003), Cont, Stoikov, and Talreja (2010), Abergel and Jedidi (2011), Cont and De Larrard (2013), Lakner, Reed, and Stoikov (2013), Lachapelle, Lasry, Lehalle, and Lions (2014), Bayer, Horst, and Qiu (2015) and Abergel and Jedidi (2015). With the notable exception of Abergel and Jedidi (2015), where the authors consider the case of Hawkes-type dynamics, these models usually assume Poisson flows 1 for the order arrival processes.…”