9) which of the following statements is true? a) free trade is beneficial only if your country is strong enough to stand up to foreign competition. b) free trade is beneficial only if your competitor does not pay unreasonably low wages. c) free trade is beneficial only if both countries have access to the same technology. d) free trade is never beneficial for developing countries. e) free trade can be beneficial to the economic welfare of all countries involved

Sara bought 12 3/4 cakes sara's friends ate 3/8 how much cake is left

4. suppose that pollution in a neighborhood comes from two factories, with marginal benefit curves given by mb1 = 12 – p1 and mb2 = 8 – p2. the level of pollution in the neighborhood is given by p = p1 + p2. the government wants to limit pollution by instituting a pollution-rights market. the government’s desired level of p is 10, so it prints 10 pollution rights and offers them for sale to the firms.a)find the equilibrium selling price of a pollution right, as well as the allocation of rights (and hence pollution levels) across the two factories. b)repeat part (a) for the case where the government’s desired level of pollution equals 14. c)comment on the usefulness of a pollution rights market in achieving efficient levels of pollution abatement.

The rybczynski theorem describes: (a) how commodity price changes influence real factor rewards (b) how commodity price changes influence relative factor rewards. (c) how changes in factor endowments cause changes in commodity outputs. (d) how trade leads to factor price equalization.