Modern theoretical and empirical analyses in international trade typically focus on firms as the sole trading actors. This is consistent with the fact that firms have traditionally accounted for the vast majority of trade and, hence, examining their behavior allows for fully characterizing trade...

The last ten years have seen the growth of linkages between many of the world's cap-and-trade systems for greenhouse gases (GHGs), both directly between systems, and indirectly via connections to credit systems such as the Clean Development Mechanism. If nations have tried to act in their own...