Italian agencies would often coerce models to return to Italy without work visas by withholding their pay.
Eventually, this became common practice for Parisian fashion houses.
A model is a person with a role either to promote, display or advertise commercial products (notably fashion clothing in fashion shows), or to serve as a visual aid for people who are creating works of art or to pose for photography.
Modelling ("modeling" in American English) is considered to be different from other types of public performance, such as acting or dancing.
This led many agencies to form worldwide chains; for example, the Marilyn Agency has branches in Paris and New York.
By the late 1960s, London was considered the best market in Europe due to its more organised and innovative approach to modelling.