Sausage

The NYT has an interesting op-ed today regarding developments in congressional antics regarding GSP, Trade Adjustment Assistance, Andean Preferences, and the Colombia-US FTA.  I won't try to replicate its description of the linkages among these, which remind us of Bismarck's observation that there are two things you don't want to see being made, and one of them is legislation.  But what I found interesting was the NYT's assertion that GSP is valuable for developing countries.  The last time I looked, there was little evidence of benefits for developing countries from GSP. A nice paper by Ozden and Reinhardt cast a great deal of doubt on the benefits of htese programs.   I suppose that observation might extend to the Andean Preferences.  Is there evidence that these preferences provide benefits?