The article discusses a study which examined the effect of fixed-price regulation on cost elasticity and cost asymmetry. The effect of ownership on firms' adjustments to cost elasticity and cost asymmetry in response to price regulation is explored. Aside from examining whether the change in regulation influences cost elasticity, analyses explored the effect of a change in regulation on the asymmetric behavior cost. The data used, provided by the German Federal Statistical Office, consist of a random sample of 70 percent of the entire population of German hospitals for the years 1993-2008. Results emphasizes the necessity to distinguish between upward and downward changes in cost elasticity when examining cost behavior..