Tough trading conditions in North American continue to impact French retailer Pinault-Printemps-Redoute SA which today said revenue dropped 2.1 per cent in the second quarter. In a statement, PPR chief executive Serge Weinberg said it was encouraging to note that like for like, second quarter revenue outside North America was up 0.2 per cent, compared with a 0.8 per cent drop in the first quarter.