We introduce a multistep-ahead forecasting methodology that combines empirical mode decomposition (EMD) and support vector regression (SVR). This methodology is based on the idea that the forecasting task is simplified by using as input for SVR the time series decomposed with EMD. The outcomes...

The scaling properties encompass in a simple analysis many of the volatility characteristics of financial markets. That is why we use them to probe the different degree of markets development. We empirically study the scaling properties of daily Foreign Exchange rates, Stock Market indices and...

Systemic risk, in a complex system with several interrelated variables, such as a financial market, is quantifiable from the multivariate probability distribution describing the reciprocal influence between the system's variables. The effect of stress on the system is reflected by the change in...

The growing importance of citation-based bibliometric indicators in shaping the prospects of academic careers incentivizes scientists to boost the numbers of citations they receive. Whereas the exploitation of self-citations has been extensively documented, the impact of reciprocated citations...

We study the effect of counterparty risk on the stability of a banking system using stylized banking cascade models calibrated with UK exposure and balance sheet data from regulatory reports. We observe the development of a fragile phase, at which small perturbations to banks' capital reserves...

We investigate the effect of immigration to the UK showing that immigration is responsible for less than 16% of the increase in UK income and wealth inequality over the last 25 years. The contribution from EU immigrants is less than 10%, and less than 5% comes from EU8 EU2 (Bulgaria, the Czech...

In this short note I provide a very simple estimation of the fair cost for the proof of work in Bitcoin mining. I conclude that the current cost, although large, is of a justified order of magnitude for an anonymous systems operating between untrustful parties