ℓ1 polynomial trend filtering, which is a filtering method described as an ℓ1-norm penalized least-squares problem, is promising because it enables the estimation of a piecewise polynomial trend in a univariate economic time series without prespecifying the number and location of knots. This...

Derived from the renowned multi-volume 'International Encyclopaedia of Laws', this practical analysis of competition law and its interpretation in Japan covers every aspect of the subject - the various forms of restrictive agreements and abuse of dominance prohibited by law and the rules on...