The research aim to assess the level of competition on the market supply and sales, and the trend observed in the phenomenon of competition in the market. Information was obtained on the basis of the opinion of entrepreneurs selected companies located in rural areas southwestern borderland...

This paper identifies a new mechanism through which value added taxes may influence the degree of competition in oligapolistic markets. The analysis is based on an oligopoly in which firms interact over an indefinite period of time and hence tacitly collude.