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  • Aid for trade facilitation (English)

    Does foreign aid spent on trade facilitation increase trade flows of developing countries? There is an on-going and high profile discussion of aid-for-trade associated with the Doha negotiations of the...

    Document Type: Policy Research Working Paper Report No.: WPS5064 Document Date: September 1, 2009 Disclosure Status: Disclosed Author: Helble,Matthias,Mann,Catherine Louise,Wilson,John S.

  • Heterogeneous quality firms and trade costs (English)

    There is increasing empirical evidence that vertical product differentiation is an important determinant of international trade. However, the economic literature so far has solely focused on the case in...

    Document Type: Policy Research Working Paper Report No.: WPS4550 Document Date: March 1, 2008 Disclosure Status: Disclosed Author: Helble,Matthias,Okubo, Toshihiro

  • Transparency, trade costs, and regional integration in the Asia Pacific (English)

    The authors show in this paper that increasing the transparency of the trading environment can be an important complement to traditional liberalization of tariff and non-tariff barriers. Our definition...

    Document Type: Policy Research Working Paper Report No.: WPS4401 Document Date: November 1, 2007 Disclosure Status: Disclosed Author: Helble,Matthias,Shepherd, Ben,Wilson, John S.