WORLD TRADE
ORGANIZATIONTN/MA/W/11/Add.1
13 December 2002
(02-6916)
Negotiating Group on Market Access Original: English
MARKET ACCESS FOR NON-AGRICULTURAL PRODUCTS
Communication from the European Communities
Addendum
The following communication, dated 11 November 2002, has been received from the
European Communities.
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EC Compression Mechanism
The compression mechanism combines the properties of both process and result-oriented
types of formulae.  It can be described as a simple linear function with a different slope per initialrange of duties resulting in a compression effect on the tariff structure.
The following function gives the duties resulting from the compression of an initial range of
duties into a flatter range.
duty. initial  whereand bracket, new in the limits same as 1 and 1 and bracket, basein  limits upper  and lower  as 0 and 0with  ,
)0 0()1 1(
*)0(1)(
=/g239/g238/g239/g237/g236
−−
− + =
xUBLBUBLBLBUBLBUBLBxLBxf
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