The initial agreement concluded with transnational corporations thus tends to include a large number of special concessions. Later, as circumstances change, the concessions appear to be too onerous and the host country may deem it necessary to redress the situation. In such cases foreign affiliates could be treated in a discriminatory fashion or could even be expropriated. Such treatment, though it may be directed towards particular transnational corporations, inevitably creates an atmosphere of mistrust which operates against the long-term interests of both host countries and corporations. Moreover, concern about future unfavourable treatment may lead transnational corporations to attempt to extract the most out of their investment in the least possible time. These, and other uncertainties, make transnational corporations reluctant to invest in some developing countries unless their prospects are distinctly more attractive than those expected in developed countries.