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حسابداری و مالی::
عوارض خارجی مثبت
their R&D, private R&D investment has positive externalities and could be lower than
private expenditure on R&D has positive externalities and may be lower than socially optimal.
creates the positive externality, i.e. private R&D investment.
Autant-Bernard (2001), for instance, finds positive externalities from public research to
investments in case of sufficient positive externalities from each firm's R&D efforts, or
واژگان شبکه مترجمین ایران