Hostility towards minorities may sometimes have economic rather than racial motives. Labour market fears, or concerns about the welfare system, may manifest themselves in hostile remarks and actions against population groups that are considered to be competitors for these resources, as well as...

Maximisation of utility by a single consumer subject to a linear budget constraint is well known to imply strong restrictions on the properties of demand functions. Empirical applications to data on households however frequently reject these restrictions. In particular such data frequently show...