We introduce non-nested hypothesis tests using indirect simulation-based estimation procedures.

We consider truncated processes, both in discrete and continuous time, and study their dynamic properties. When the underlying process is a diffusion process, we derive the infinitesimal generator of its truncated counterpart. This result is the basis for the estimation of the drift and...

We analyse high-frequency data by means of the duration between successive ticks and volume of capital durations. It allows to introduce trading activity and coactivity measures, which may or may not also be volume weighted. Some applications on particular stocks of the PAris Bourse are provided.