Im from Scandinavia (Norway), and have imported several products from diferent Asian companies. I think Girls are better when it comes to sales from Asia to Europe and the US.
There are several factors that come into play, here I list a few:
1. European girls are used to a free and democratic system, thus a Girl is expected to be honest and true when she gives her opinion. When I get quotes and product information from a Girl, I believe her to be honest.
2. A man is often desperate in making a sale, a Girl might be just as desperate but they know how to be modest and be "hard to get", thus they can play a game with the customer not showing the desperate interest in selling. This in turn will make the buyer believe they have found the right supplyer as the sales person is not desperate on selling.
3. A girl can flirt and keep an unformal tone with a male buyer, and lats face it, if the true number for sales persons are 80% girls I would guess 80% of the buyers are male. Great match!
Thats some insight from a Norwegian buyer. I think male sales persons are just as good, as long as they are good salespersons. Persons just of the street or not suitable for sales will always fail, honesty and quality is the only thing that counts, so good luck whatever gender you are.
D