It is known that the outcome function realizing Walrasian equilibrium correspondence can easily be constructed provided an auctioneer is permitted. Schmeidler and Hurwicz have shown that, even if an auctioneer is not permitted, there are some mechanisms implementing Walras correspondence. Their formulations were restricted, however, to the cases of pure exchange economy. In this note, we construct mechanisms which implement Walras correspondence in a private ownership economy which is not particularly restricted to the pure exchange economy. In these mechanisms prices are set by firms or consumers and no auctioneer is required.