Schreyögg, Jonas; Grabka, Markus M. - 2010
copayment for ambulatory care in 2004 for individuals with statutory health insurance (SHI). Because persons with private …-in-difference approach to examine whether the new copayment effectively reduced the overall demand for physician visits and to explore … same time, we did not observe a deterrent effect among vulnerable individuals. Thus, the copayment has failed to reduce the …