Thompson bought the small agency at which he worked in 1878, immediately substituting his own new strategies to the advertisement of products. He was the first to recognize that women controlled the bulk of disposable income and geared his advertising to address that fact. By 1900, he had a virtual monopoly on magazine and print media advertising. Thompson sold out his interest in the firm in 1916 for $500,000 to Stanley Resor. Today, J. Walter Thompson is one of the largest advertising agencies in the world.