Not a trick question: Are artists' 'employees,' or are they 'independent contractors?' There are reasons why artists may want them to be a little bit of both. Many employers, including artists, prefer to forgo the paperwork and payment of employee taxes.
Last fall I attended a show at the Montreal Museum of Fine Arts. The exhibition was a retrospective that guided onlookers through a lifetime of Wesselmann's work, a contemporary of Warhol and Lichenstein but holding a unique outlook and artistic process.