Algo developers often stress the importance of alpha predictors over short and long-term horizons. Good alpha predictors can help modulate trading plans and improve the timing of executions. However, ...

Tree stem taper modeling is fundamental to modern forestry science and practice, providing a precise framework for understanding how stem diameters decrease with height. This modelling not only ...

We study a percolation model on the square lattice, where clusters "freeze" (stop growing) as soon as their volume (i.e., the number of sites they contain) gets larger than N, the parameter of the ...

Chinese electric car startup Nio has come a long way since it showed up in 2016 with its EP9 track-only supercar. The company has managed to launch a mid-size crossover SUV called the ES8, start ...

Welcome to the fourth issue of the thirteenth volume of The Journal of Risk Model Validation. This issue contains four papers, all of which maintain the high standard of scholarship we have come to ...

Faced with unprecedented political risk, which does not normally form part of the risk model architecture, we are witnessing macroeconomic events that may well inform future approaches to validation.