Although both in US antitrust and European competition law there is a clear evolution to a much broader application of "rule of reason" (instead of per-se rules), there is also an increasing awareness of the problems of a case-by-case approach. The "error costs approach" (minimizing the sum of...

In the rental residential building stock, the landlord-tenant-dilemma is a well-known barrier to investments in energy efficiency and exacerbated where rent control limits the possibility to raise rents to finance landlords' investments. Some jurisdictions, like Germany, allow landlords to...

According to expressive law theories, expression of values is an important function played by the law. Expressive laws affect behavior, not by threatening sanctions or promising rewards, but by changing individual preferences and tastes and, in some cases, by affecting social norms and values....