This 21st edition of the NBER Macroeconomics Annual treats many questions at the cutting edge of macroeconomics that are central to current policy debates. The first four papers and discussions focus on such current macroeconomic issues as how structural-vector-autoregressions help identify...

<DIV><DIV><P>The <I>NBER Macroeconomics Annual </I>provides a forum for important debates in contemporary macroeconomics and major developments in the theory of macroeconomic analysis and policy. . The papers and accompanying discussions in <I>NBER Macroeconomics Annual 2008</I>, which<DIV>include contributions from leading...</div></i></i></p></div></div>

<DIV><DIV><P>The <I>NBER Macroeconomics Annual </I>provides a forum for important debates in contemporary macroeconomics and major developments in the theory of macroeconomic analysis and policy that include leading economists from a variety of fields. The papers and accompanying discussions in <I>NBER Macroeconomics...</i></i></p></div></div>

<DIV>The <I>NBER Macroeconomics Annual</I> provides a forum for important debates in contemporary macroeconomics and major developments in the theory of macroeconomic analysis and policy that include leading economists from a variety of fields. The papers and accompanying discussions in <I>NBER Macroeconomics...</i></i></div>

The central claim in this paper is that by explicitly introducing costs of international trade (narrowly, transport costs but more broadly, tariffs, nontariff barriers and other trade costs), one can go far toward explaining a great number of the main empirical puzzles that international...

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