World War I led to radical changes in the government policy of participating countries. The enormous demographic and economic disturbances caused by the war forced the governments of all the belligerent nations to drastically restrict the market freedom. In particular, the state began actively...

Rising rents in German cities have led to an intense debate about the need for tighter rent controls in housing markets. In April 2015, the so-called rental brake was introduced, which imposes upper bounds for rents in new contracts, in order to immediately slow down the increase of rents in...