Here"s the latest Business and Tech News on the internet, click on the source link below to view the original source link... ZURICH (Reuters) - UBS ( UBSG.S ), the world’s largest wealth manager, is convinced its new online private bank needs to get bigger. Now it needs to work out how. The Swiss bank began piloting SmartWealth last year in Britain as a platform to rival start-ups such as WealthFront in the United States and British venture Nutmeg. Juerg Zeltner, the head of UBS’s wealth management division, told Reuters on Wednesday he was “very happy with the offering” but that scale was crucial for the model to be a success. “This is a big learning ... the real question is how do you scale it to more?” Zeltner said. Digital wealth managers are dwarfed by established banks like UBS, which manages more than $2 trillion in client assets. But their lower-cost model of building an investment portfolio based on a client’s risk appetite is seen as a...