Boycott works, formal or informal

"Israeli manufacturers say that they are already feeling the effect of an informal boycott.

A private survey carried out by the Manufacturers Association of Israel has identified a huge decline in demand for Israeli exports.

That has been caused, in large part, by the global economic slump. But one in five exporters said that "being Israeli causes some problems".

In this case, the problem stems from the recent conflict in Gaza. An official from the Association, who asked not to be named, because the publicity had not been helpful, said that a boycott "happens every so often" - during wars, or Palestinian uprisings."

http://news.bbc.co.uk/2/hi/middle_east/7973785.stm