Middle-income households and workers haven't been disappearing. They've been moving into higher income levels, while the lowest-income groups have been getting smaller. But another recession could erase many of the gains made over 20 years.
Murray Rothbard defines the phrase free market: "a summary term for an array of exchanges that take place in society. Each exchange is undertaken as a voluntary agreement between two people or between groups of people represented by agents."
A lobbying group in Canada is demanding home-sharing services like Airbnb face stiffer government regulation. Activists claims its all for "the community." But huge corporate hotel firms are the only ones likely to really benefit.