We empirically examine how the complexity of ECB communications affects financial market trading based on high-frequency data from European stock index futures between 2009 and 2017. Analysing linguistic ECB’s introductory statements differentiating press conferences with without announcements unconventional monetary policy measures (UMPM), we find that more complex communication, i.e. high UMP...

Abstract Efficient distributed computing offers a scalable strategy for solving resource-demanding tasks, such as parallel computation and circuit optimisation. Crucially, the communication overhead introduced by allotment process should be minimised—a key motivation behind complexity problem (CCP). Quantum resources are well-suited to this task, offering clear strategies that can outperform cl...

We consider a two-party distributed hypothesis testing problem for correlated Gaussian random variables. For d-dimensional vector X and scalar variable Y, where Y are jointly with an unknown correlation ?, parties P 1 xmlns:xlink="http://www.w3.o...