Fall in advertising spending. - The communication group ZenithOptimedia (Publicis group) is concerned by the trend in global advertising. It expects a fall of 6.9% in advertising spending this year to $453 billion, making it the worst for 30 years. Slight improvement is expected in 2010, except in North America. Poor corporate confidence means very limited visibility in the market, the report notes. (I.L./transl.rt)