We consider an oligopolistic market where firms compete in price and quality and where consumers are heterogeneous in knowledge: some consumers know both the prices and quality of the products offered, some know only the prices and some know neither. We show that two types of signalling...

The oligopolistic structure of the open pension funds in Poland implies homogeneity of their behaviors on the market. In particular, it influences low competitive pressure between the funds. This Article draws attention to poor competitiveness of the funds, both in the area of price competition,...