Is it possible to ‘steal’ work?

San Francisco taxi labor groups called for the eradication of car ride-sharing startups and the imprisonment of some of their members at a protest in front of City Hall yesterday. “We want to see these illegal cabs to go away. We want them to be ticketed, cited, arrested, if necessary. They should not be allowed as long as you have a regulated taxi force,” said Barry Korengold, President of the San Francisco Cab Drivers Association, who helped organize the protest.

Source: Taxi Groups Call For Eradication Of Rideshare Startups At SF City Hall Protest | TechCrunch

 

Is it possible to ‘steal’ work? Do you ‘own’ your job? Your customers? Your sales? At what point is a contemplated or incomplete transaction ‘yours”?

I like the concept that something must be “property” in order to be stealable. Is all property stealable, or is “is property” a necessary but insufficient precondition to “is stealable”?

Historically, it could be said that union shops — businesses which could only hire members of a specific union / businesses whose employees were forced to belong to a specific union and pay its dues — represented jobs “owned” by the union(s). Or is that a stretch?

What factors could/should be considered in determining if something is/could/should be “property”?