This paper examines the competition of nonprofit sickness funds in the market for supplementary health insurance. We … equilibrium depends on the consumers' sensitivity. If there is no equilibrium in the simultaneous competition, sequential quality … competition leads to a differentiated equilibrium with a first mover advantage. -- supplementary health insurance ; vertical …

consequences of broken symmetry of scaling, as well as the limits of firms’ competition for market shares. -- market share …

considered input-price commitment and delegation decision together, input price-delegation-quantity competition order coupled …