we asked economic analyst richard gill how the ilg used demand to get wage raises.g conditions, which were sometimes intolerable in those days. unions, of course, also had an impact on wages. to analyze their effect, you must compare wage determination according to ordinary supply and demand with wage determination when unions intervene. basically, without unions, wages would be determined by the intersection of business firms' demand curve for that particular kind of labor and the supply curve for such labor. this demand curve reflects two things. consumer demand for the product, and the productivity of the labor employed-- roughly, how much each added laborer will contribute to increase garment production. the supply curve reflects the availability of this particular kind of labor and workers' willingness to supply their labor at various wage rates. supply and demand are equated at this intersection of the two curves. we get an equilibrium wage here, and the quantity of labor that will be employed here. in the garment industry, what you had was an enormous availab